NOVELTY - Vertical pyrolysis device comprises a furnace body (4), whose top is provided with a feeding port (1), a first start-shaped feeder (2) installed in the feeding port and a second start-shaped feeder (3) installed in a precipitation reactor (9). The first start-shaped feeder is coaxially set at the bottom of the furnace. An inner separation layer of the furnace body divides the furnace body into a raw material pyrolysis area and a biochar cooling area. An insulation layer is set in the furnace body and on both sides of the inner separation layer. An annular guide plate is fixed on the furnace.    USE - The device is useful for producing biochar (claimed).    ADVANTAGE - The device ensures uniform heating of the raw materials; and has controllable pyrolysis time with continuous production, high production efficiency and high energy utilization rate.    DETAILED DESCRIPTION - Vertical pyrolysis device comprises a furnace body (4), whose top is provided with a feeding port (1), a first start-shaped feeder (2) installed in the feeding port and a second start-shaped feeder (3) installed in a precipitation reactor (9). The first start-shaped feeder is coaxially set at the bottom of the furnace. An inner separation layer of the furnace body divides the furnace body into a raw material pyrolysis area and a biochar cooling area. An insulation layer is set in the furnace body and on both sides of the inner separation layer. An annular guide plate is fixed on the furnace body. A circular guide plate is fixed on the furnace body and the precipitation reactor cavity. The precipitation reactor is set in between and is in contact with the annular guide plate and circular guide plate. Multiple precipitation reactors are connected end to end. The precipitation reactor is provided with a pyrolysis gas pipe connected to a pyrolysis gas outlet at the upper part of the furnace body. The raw material pyrolysis area is provided with a flue gas inlet. The top of the pyrolysis area is provided with a flue gas outlet. The flue gas inlet is connected with the flue gas outlet. The flue gas outlet extends from the furnace body to the precipitation reactor cavity. Multiple exhaust holes are set on the flue pipe. The bottom of the raw material pyrolysis area and biochar cooling area are provided with an air inlet and the upper part is provided with an air outlet. The air inlet is connected with the air outlet. The air inlet extends from the furnace body extended to the precipitation reactor cavity. The air inlet pipe of the biochar cooling area is provided with multiple exhaust holes. The furnace body is provided with a discharge port. A star-shaped discharging device is transversely set in the discharge hole.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the vertical pyrolysis device for producing biochar.    Feeding port (1)    First start-shaped feeder (2)    Second start-shaped feeder (3)    Furnace body (4)    Precipitation reactor (9)