Rural family of discarded object supply is bred with biogas engineering circulation technique to live pig scale

The utility model relates to a methane -generating pit technical field especially relates to rural family of discarded object supply is bred with biogas engineering circulation technique to live pig scale. Including aeration equipment's design, effect through play from raw material mixing to methane -generating pit bottom aeration makes the increase of marsh gas productivity, has solved and is less than 15 the time when the temperature in the methane -generating pit, and the marsh gas productivity is very low, no longer produces the problem of marsh gas even, the setting of wind turbine deviceneed not plus the motor, provides power and energy through nature wind -force and drives the rotation of wind -force carousel, finally drives piston motion and realizes air inlet process, and is energy -concerving and environment -protective, the design of the gas vent of methane -generating pit end tee bend one side pressure valve, the pressure valve can automatic be opened when pressure reachdcertain intensity in the m