NOVELTY - Biomass carbon gas cogeneration system comprises platform frame (1); carbonizing furnace (2); and spiral cooling conveyors (4, 5). The platform frame is provided with furnace body (3), which comprises light refractory brick layer (32) provided with aluminum silicate fiber layer (31), and carbonizing furnace that corresponds to furnace chamber (33). The carbonizing furnace comprises furnace top (21), furnace (22), and electromagnetic oven (23). The furnace top is provided with feed pipe (6) which is connected with air outlet pipe (7) and feeding tank (8).    USE - Biomass carbon gas cogeneration system.    ADVANTAGE - The biomass carbon gas cogeneration system improves production efficiency and provides good pyrolysis effect and good generated biomass carbon.    DETAILED DESCRIPTION - Biomass carbon gas cogeneration system comprises platform frame (1); carbonizing furnace (2); and spiral cooling conveyors (4, 5). The platform frame is provided with furnace body (3), which comprises light refractory brick layer (32) provided with aluminum silicate fiber layer (31), and carbonizing furnace that corresponds to furnace chamber (33). The carbonizing furnace comprises furnace top (21), furnace (22), and electromagnetic oven (23). The furnace top is provided with feed pipe (6) which is connected with air outlet pipe (7) and feeding tank (8). The air outlet pipe is connected with air storage cabinet (10). The electromagnetic oven has bottom part provided with carbon discharging pipe (11) which is connected with first spiral cooling conveyor. The furnace body near the bottom of electromagnetic oven is provided with three oblique cutting nozzles (9). Each cutting nozzle is connected with corresponding fan (14) through air pipe (12) and gas pipe (13). The air pipe is provided with air valve (121), while gas pipe is provided with gas valve (131). The furnace chamber (33) is connected with smoke pipe via heat pipe (15). The heat pipe is provided with gate valve and flue gas pipe (16) which are respectively provided with upper flue valve (161) and lower gas valve (162). The air outlet pipe close to furnace top is provided with air valve, air outlet pipe, air outlet valve, and diffusing pipe (17). The diffusing pipe is provided with ignition valve. The air storage cabinet is connected with carbon discharging pipe, nitrogen valve (111), and spiral cooling conveyors. The furnace body is also provided with furnace bottom thermocouple (231), furnace top thermocouple (211), and furnace thermoelectric couple (221). The cutting nozzles are uniformly arranged on same circumference. The nozzles form angle at 40 degrees with respect to side part of furnace chamber. The tail ends of spiral cooling conveyors are respectively provided with cooling thermometers.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of biomass carbon gas cogeneration system.    Platform frame (1)    Carbonizing furnace (2)    Furnace body (3)    Spiral cooling conveyors (4, 5)    Feed pipe (6)    Air outlet pipe (7)    Feeding tank (8)    Cutting nozzles (9)    Air storage cabinet (10)    Carbon discharging pipe (11)    Air pipe (12)    Gas pipe (13)    Fan (14)    Heat pipe (15)    Flue gas pipe (16)    Diffusing pipe (17)    Furnace top (21)    Furnace (22)    Electromagnetic oven (23)    Aluminum silicate fiber layer (31)    Refractory brick layer (32)    Furnace chamber (33)    Nitrogen valve (111)    Air valve (121)    Gas valve (131)    Flue valve (161)    Lower gas valve (162)    Top thermocouple (211)    Furnace thermoelectric couple (221)    Bottom thermocouple (231)