NOVELTY - The device comprises a raw material storage bin connected with a crushing device that is connected with a drying device. The drying device is connected with a dedusting and a desulfurizing device that is connected with a pyrolysis charring rotary furnace and a draught fan. The pyrolysis charring rotary furnace is connected with an oil-gas separating device that is connected with a black storing cavity, a gas tank storage tank, an oil tank and a wood vinegar purification device. The purification device is connected with the pyrolysis charring rotary furnace.    USE - Biomass pyrolysis device.    ADVANTAGE - The device has high working efficiency, continuous feeding and discharging functions, high carbon rate, less carbon discharging time and less energy consumption.    DETAILED DESCRIPTION - The device comprises a raw material storage bin connected with a crushing device that is connected with a drying device. The drying device is connected with a dedusting and a desulfurizing device that is connected with a pyrolysis charring rotary furnace and a draught fan. The draught fan is connected with a chimney. The pyrolysis charring rotary furnace is connected with an oil-gas separating device that is connected with a black storing cavity, a gas tank storage tank, an oil tank and a wood vinegar purification device. The wood vinegar purification device is connected with the pyrolysis charring rotary furnace that is connected with the drying device. A rotating stove is provided with a feeding push rod device, a hearth temperature control device, a temperature control device, a discharging device, a discharge transfer device, a discharging opening, a supporting base, a heating device and a transmission device. The feeding push rod device is fixed at an outer surface of a feeding device that is provided with a feeding opening and connected with the kettle body. An end of a dynamic and static seal parts are connected with two supporting bases that are respectively installed on the kettle body. A hearth is arranged in a middle part of a kettle body. A contact part of the kettle body is fixed with a filler seal connecting spring. The heating device is fixed on a lower side of the hearth. A bottom wall of hearth is provided with a flue gas outlet and a circular hot tube. The circular hot tube is connected with the drying device. The flue gas outlet is connected with the chimney and an upper side of the discharging device. A hearth temperature control device is fixed on the kettle body. A lower side of the discharging device is provided with a discharge transfer device whose two sides are respectively formed with the discharging opening and a transmission device. The feeding push rod device is a piston structure or a spiral conveying structure. The discharge transfer device is a screw rod structure. The device comprises an extractor, a buffer device and a gas tank storage tank. The gas tank storage tank is connected with an air pump. The buffer device is connected with a vacuum carbonizing rotary furnace. The biological raw material storage bin passes the biomass raw material to the crushing device. The pyrolysis part is provided with a pyrolysis rotary furnace and a carbonization part for carbonization treatment. The oil-water separating device separates the tar, wood vinegar and separated coke oil from pyroligneous liquor. The pyroligneous liquor is passed into a wood vinegar purification device. The biomass raw material is passed from a feeding device into the pyrolysis rotary furnace through a feeding opening. The kettle body is rotated to transfer the material into the heating device having temperature range of 350-450 degrees C.