NOVELTY - Processing device comprises a marsh gas fermenting room (17) having heat providing pipe (18) and marsh gas outputting hole (30). A second air compressor (19) is connected to the marsh gas outputting hole by a marsh gas outputting pipe (24). A blending tank (22) is connected to a first pulverizing machine (23) by belt conveying machine. A second marsh gas outputting pipe (241) and a third air compressor (191) are set in desulfurization room. A marsh gas slag outlet (27) is set on the fermenting room and connected to drying machine, which is connected to pulverizing machine.    USE - Processing device for fermenting marsh gas.    ADVANTAGE - The device provides economic and social benefits.    DETAILED DESCRIPTION - Processing device comprises a marsh gas fermenting room (17) whose bottom portion has a heat providing pipe (18), and top portion has marsh gas outputting hole (30). A second air compressor (19) is connected to the marsh gas outputting hole by a marsh gas outputting pipe (24). A material hole (20) is set on the top portion of the marsh gas fermenting room and connected to a blending tank by a first belt conveying machine (21). A blending tank (22) is connected to a first pulverizing machine (23) by a second belt conveying machine (211). The second air compressor is connected to a water-washing desulfurization room (25) with \)4?oC by the first marsh gas outputting pipe. A second marsh gas outputting pipe (241) and a third air compressor (191) are set in the desulfurization room. The third air compressor is connected to a marsh gas storing room (26) by the second marsh gas outputting pipe. A marsh gas slag outlet (27) is set on the bottom portion of the fermenting room and connected to a drying machine (28) by a third belt conveying machine (212). The drying machine is connected to a second pulverizing machine (231) by a fourth conveying machine (213). The second pulverizing machine is connected to a second blending tank by a fifth conveying machine (214). The second blending tank is connected to grain fertilizer manufacturing machine (29). A safety explosive proof alarm set on the top portion of the marsh gas fermenting room is connected to the production monitoring platform (32).    DESCRIPTION OF DRAWING(S) - The drawing is a schematic view of the processing device.    Marsh gas fermenting room (17)    Heat providing pipe (18)    Second air compressor (19)    Material hole (20)    First belt conveying machine (21)    Blending tank (22)    First pulverizing machine (23)    Marsh gas outputting pipe (24)    Water-washing desulfurization room (25)    Marsh gas storing room (26)    Marsh gas slag outlet (27)    Drying machine (28)    Grain fertilizer manufacturing machine (29)    Marsh gas outputting hole (30)    Production monitoring platform (32)    Third air compressor (191)    Second belt conveying machine (211)    Third belt conveying machine (212)    Fourth conveying machine (213)    Fifth conveying machine (214)    Second pulverizing machine (231)    Second marsh gas outputting pipe (241)