NOVELTY - A synergistic device for applying wind power generation on methane tank, comprises a vane (1) of a wind power generator (2) where the wind over the ground blows to rotate around a rotary shaft (3) of the wind power generator to drive the wind power generator (2) and to produce the direct current; where the direct current is imported in a controller (5) via an electric guide wire (4) to be regulated and imported in an inverter (6) and then switched into the alternating current; and a part of the alternating current is used for driving a motor (7) to drive an agitator (11).    USE - The synergistic device is useful for applying wind power generation on methane tank (claimed).    ADVANTAGE - In the synergistic device, a part of the alternating current is used for driving a motor to operate to drive an agitator to rotate and the methane raw material in the methane tank is fully contacted with the methane germ in the agitating process to improve the efficacy of the output methane. Moreover, the other part of alternating current is imported in a temperature increasing device in the fermentation liquid in the methane tank to disperse heat and to suitably increase the temperature of the fermentation liquid; and the methane germ is prompted to grow and breed, which improves the methane efficiency of the methane tank.    DETAILED DESCRIPTION - A synergistic device for applying wind power generation on methane tank, comprises a vane (1) of a wind power generator (2) where the wind over the ground blows to rotate around a rotary shaft (3) of the wind power generator to drive the wind power generator (2) and to produce the direct current; where the direct current is imported in a controller (5) via an electric guide wire (4) to be regulated and imported in an inverter (6) and then switched into the alternating current; a part of the alternating current is used for driving a motor (7) to drive an agitator (11) arranged in the methane tank (15), in a fermentation room (13), and in the fermentation liquid to continuously agitate the fermentation liquid in the methane tank (15) and in the fermentation room (13); the fermentation liquid in the fermentation room (13) and the methane germ are fully agitated evenly to prompt the methane germ to grow and breed and to obviously improve the methane output yield of the fermentation liquid; the other part of alternating current is imported in a temperature increasing device (14) in the fermentation liquid of the fermentation room (13); the electric energy is switched into the heat energy to make the methane germ produce more methane in the suitable temperature; a movable cover (8) is installed on the methane bank (15) to supply a passage for passing the serviceman and an outlet for the serviceman to clean the methane residue in the tank; the fermentation liquid in a water pressure room (17) presses the outlet of the fermentation liquid flowing from a material outtake pipe (16) to the water pressure room (17) to form the sealed anaerobic environment, which is beneficial for the methane germ to produce methane in the methane tank (15); the methane produced in the fermentation room (13) rises to a methane storage room (9) to be stored and pressurized; and when the user uses the methane, the methane is exported from the methane storage room (9) via a methane convey pipe (18) and a methane storage shield (18) to be used as the fuel of a biogas cooker.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the synergistic device for applying wind power generation on methane tank.    Vane (1)    Wind power generator (2)    Rotary shaft (3)    Electric guide wire (4)    Controller (5)