NOVELTY - The system has pipeline (26) that connects coil pipe type heat exchanger (14) arranged in adjusting pool (2) with the pipeline (27) to form circulating water path. The anaerobic reactor (4) is connected with desulfurizing tower (6) through air duct (5). The desulfurizing tower is connected with condenser through air duct (32). The condenser (7) is connected with gas storage tank (8) through air duct (33). The gas in gas storage tank (8) enters marsh gas internal combustion generating set (10) by passing through air ducts (34,35) and flame arrester (9).    USE - Marsh gas power generation system.    ADVANTAGE - The system can be operated efficiently under medium and low temperature conditions. Since the system uses renewable source of energy, the pollution caused by the power generation system is reduced and the system consumes less energy.    DETAILED DESCRIPTION - The system has griding (1) and adjusting pool of preprocessing unit located in sunlight greenhouse (31). The low wind speed of wind generating set (17) of wind energy generation heating system is connected with electric heater (19) in circulating water tank (20) through a conducting wire (18). A circulating water pump (22) is connected with water outlet of circulating water tank (20). The hot pipe type solar hot water array (24) has water inlet connected through pipelines and the water outlet is connected with water inlet of the circulating water tank (20) through pipeline (28) to form a solar heating system. An adjusting pool (2) is connected with level anaerobic reactor (3) by main pipeline (30) through sewage pump (11). A coil pipe type heat exchangers (15,16) are situated in the level anaerobic reactors (3,4).    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the marsh gas power generation system.    Griding (1)    Adjusting pool (2)    Anaerobic reactors (3,4)    Air duct (5)    Desulfurizing tower (6)    Condenser (7)    Gas storage tank (8)    Flame arrester (9)    Marsh gas internal combustion generating set (10)    Sewage pump (11)    Coil pipe type heat exchangers (14,16)    Wind generating set (17)    Conducting wire (18)    Electric heater (19)    Circulating water tank (20)    Circulating water pumps (21,22)    Solar hot water array (24)    Pipelines (26,27)    Air ducts (32,33,34,35)