Straw aerobic and anaerobic alternate fermentation system

The invention provides a straw aerobic and anaerobic alternate fermentation system. The system comprises a tank body, a tank door is arranged in the tank body, a rotating ring is rotatably connected to the interior of the tank body, a heating piece is arranged in the tank body, and a rotating motor is arranged at the top of the tank body. According to the straw aerobic and anaerobic alternate fermentation system provided by the invention, a telescopic piece is controlled to extend or contract, so that a rotating sleeve is connected with a driving wheel to move up and down and is separated from two driven wheels, and meanwhile, a rotating block is combined with a rotating groove; and the rotating motor can drive the rotating frame or the two stirring mechanisms to rotate towards one side when rotating, so that the use cost of the equipment in use is reduced, meanwhile, disintegrating slag can be prevented from entering the bottom of the tank body through the filtering piece, and chippings or disintegrating sla