Bioreactor

The invention provides a bioreactor which comprises a bioreactor body, the bioreactor body comprises a base, a barrel body is fixed on the base, a sealing disc is slidably mounted between the barrel body and the base, a fixed seat is welded to the top of the barrel body, a movable seat is movably mounted at the top of the fixed seat, and the movable seat is movably mounted on the top of the barrel body. The movable seat and the fixed seat are connected through a fixing mechanism, a lifting mechanism is fixed to the movable seat, an air inlet pipe is installed on the side of the lifting mechanism, an exhaust pipe is installed on the side of the air inlet pipe, and the exhaust pipe and the air inlet pipe are both fixed to the movable seat. When the bioreactor is used, a conical seat in the stirring assembly stirs organisms through cooperation of a water inlet hole and a water outlet hole, the position of the conical seat can be adjusted up and down during stirring, the organisms at different positions are stirr