Methane -generating pit stirring instrument

The utility model relates to a methane -generating pit stirring instrument, including straight -bar, knee and rake teeth, the knee includes connecting rod and steering column, and the articulate straight -bar is passed through to the one end of connecting rod, and the other end of connecting rod passes through the link of corner joint steering column, the rake teeth includes dead lever and four at least rooted tooth poles, and the stiff end of steering column, vertical connection ratch on the dead lever are connected to the dead lever. This agitating unit can stretch more than the liquid level because rake teeth length is longer, can play brokenly the shell effect, in the time of the stirring for crust marsh gas down in top layer can overflow, the zigzag shaped pole portion that has certain angle, stirring instrument entering cell body makes and after, the scope and the range of stirring improve greatly, simultaneously, can so that longer rake teeth can be conveniently through advancing in the middle of the discharge gate enters into the sweathouse.