NOVELTY - Continuously operating and efficient plant carbonizing furnace capable of feeding, producing product, preheating the fed material, discharging carbon, exchanging heat automatically after the furnace is heated to 450 degrees C, comprises a gas meter (1), a fan (2), an electric control valve (3), an air needle valve (4), an air exhausting valve (5), a pressure signal pipe, a membrane valve, a gas needle pipe, a cold carbon discharging machine, a speed reducer, a carbon outlet chamber, a waste heat chamber, a combustion chamber, a smoke channel, a middle shaft, a harrow and a middle shaft table.    USE - The furnace is useful: for activating carbon particles and regenerating the waste active carbon; and as energy-saving, environmental-friendly and automatic device for biomass energy resource and industrial chemical production enterprises.    ADVANTAGE - The furnace work efficiency is increased by 3-45 times.    DETAILED DESCRIPTION - Continuously operating and efficient plant carbonizing furnace capable of feeding, producing product, preheating the fed material, discharging carbon, exchanging heat automatically after the furnace is heated to 450 degrees C, comprises a gas meter (1), a fan (2), an electric control valve (3), an air needle valve (4), an air exhausting valve (5), a pressure signal pipe, a membrane valve, a gas needle pipe, a cold carbon discharging machine, a speed reducer, a carbon outlet chamber, a waste heat chamber, a combustion chamber, a smoke channel, a middle shaft, a harrow, a middle shaft table, a screw feeder, a middle shaft material distributing plate, a filtering air outlet hole and a settling tank; cyclone dust collector, cooler, purifier including automatic continuous purification and recovery system; and a storage tank, a gas storage device, a storage bin and a material extractor connected together.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the continuously operating and efficient plant carbonizing furnace.    Gas meter (1)    Fan (2)    Electric control valve (3)    Air needle valve (4)    Air exhausting valve (5)