NOVELTY - A purification and recovery system comprises a charring pool, a purifying pool, a vertical coke knocker, a liquid-phase separator, a scrubber purifying tower, a draught fan, a cyclone separator, a gas-liquid separator, a wood tar recovery pool, and a wood vinegar liquid recovery pool. The charring pool has drain outlet connected with an inlet of the purifying pool. A smoke inlet and a smoke outlet in the vertical coke knocker, the liquid-phase separator, the scrubber purifying tower, the draught fan, the cyclone separator, the gas-liquid separator is connected with each other.    USE - Purification and recovery system used for recovering charcoal, gas and oil produced from biomass material (claimed).    ADVANTAGE - The system is energy saving and environment friendly, economical, simple and convenient to operate with high production efficiency, large output and minimum waste. The raw material can be added at any time during charring process, which can improve the charring output. The production process is simple to perform and safe.    DETAILED DESCRIPTION - A purification and recovery system comprises a charring pool, a purifying pool, a vertical coke knocker, a liquid-phase separator, a scrubber purifying tower, a draught fan, a cyclone separator, a gas-liquid separator, a wood tar recovery pool, and a wood vinegar liquid recovery pool. The charring pool has drain outlet connected with an inlet of the purifying pool. A smoke outlet of the purifying pool is connected with the vertical coke knocker through an ingress pipe and a flange. A smoke inlet and a smoke outlet in the vertical coke knocker, the liquid-phase separator, the scrubber purifying tower, the draught fan, the cyclone separator, the gas-liquid separator is connected with each other through an ingress pipe and a flange. The vertical coke knocker comprises a coke knocker cylinder body. The upper and the lower parts of the coke knocker are arranged with a gas outlet and a gas inlet respectively. The end of the gas inlet is plugged in a filter chamber. A waist grate in the upper of the filter chamber is arranged with a pall ring and a heating pipe. Lower of the cylinder body is cone-shaped. Bottom of the cone-shaped structure is arranged with a drain outlet. The liquid-phase separator comprises a cylinder body having center arranged with a central pipe. Lower of the central pipe is arranged with a cone-shaped cap, which is arranged in the cone in the bottom of the cylinder body. A condenser of the cylinder body is arranged with condenser pipes. An exhaust pipe is arranged in upper part of the cylinder body. Lower of the cone is arranged with a drain outlet. The scrubber purifying tower comprises a tower body and a smoke outlet and inlet which are arranged in lower of the tower body. The intake tube which communicates with the smoke outlet is inserted in the internal of the tower body; and upper and lower of the scrubber purifying tower are arranged with a spray head. The internal wall of the tower body is mounted with countervanes which are arranged in inclining manner. The cyclone separator comprises a separator cylinder body. Top of the cylinder body is arranged with a smoke outlet, where the side face in the top of the cylinder body is arranged with a smoke inlet, and the bottom of the cylinder body is arranged with a drain outlet. A blast pipe which communicates with the smoke inlet is arranged in the upper of the cylinder body with 15 degrees incline angle. The gas-liquid separator comprises a separator cylinder body, in which top of the cylinder body is arranged with an anti-explosion cover and a water seal, and the side face in the lower of it is arranged with a smoke inlet. The filter chamber upper cylinder body which communicates with the smoke inlet is uniformly distributed with pall ring. The lower in the cone of the cylinder body is arranged with a drain pipe. The upper of the cylinder pipe is connected with the flame lighter through an exhaust pipe. An INDEPENDENT CLAIM is included for recovery of charcoal, gas and oil produced from biomass material, comprising:    (A) sending biomass materials into the charring pool to blend through a conveyor, and igniting the raw materials;    (B) during burning process of raw materials, controlling oxide supply amount in the charring pool, and destructive distilling the raw materials to make into charcoal;    (C) entering smoke produced by destructive distillation into purifying pool to purify smoke and intercept dust particle of smoke with a higher weight than gas and to allow dust particle to fall off bottom of purifying pool, sending purified smoke into the vertical coke knocker, discharging wood tar in the smoke by the drain outlet and then discharging it in wood tar recovery pool;    (D) in the vertical coke knocker, entering smoke into filter chamber for filtering, and condensing wood tar in the smoke and discharging it through drain outlet and into wood tar recovery pool;    (E) entering filtered smoke into the condenser for cooling, where temperature in lower of condenser chamber is 300 degrees C and temperature in upper is 150 degrees C; and the residual vapor, wood vinegar liquid and wood tar molecule in the smoke are blended as wood vinegar liquid and wood tar oil during cooling process and discharged by the drain outlet, then discharged into the wood tar recovery pool;    (F) entering smoke into the scrubber purifying tower to perform circle spiral motion along with the countervanes in the scrubber purifying tower, purifying smoke in a water bath, where water droplets in smoke and dust particle with weight larger than air are thrown to wall of purifying tower and fallen off to bottom of purifying tower and discharged by drain outlet, then they are discharged into the wood tar recovery pool, so that the smoke is initially purified;    (G) sending the initially purified smoke to the spiral separator by the blast pipe after passing through the draught fan, in which it forms bypass flow to guide gas with smaller density to move upwardly and discharges it from smoke outlet, and guides gas with bigger density to be discharged by the drain outlet and recovered to the wood tar recovery pool;    (H) directly guiding gas into the gas-liquid phase separator and transferring it to the flame lighter after purified by the filter medium in the gas-liquid separator, and discharging wood vinegar liquid by the drain outlet and then into the wood vinegar liquid recovery pool; and    (I) transferring purified gas to other gas appliances through the ingress pipe.