Small aerobic and anaerobic integrated bioreactor

The utility model discloses a small aerobic and anaerobic integrated bioreactor which comprises a fixing frame, a containing shell is rotatably installed on the fixing frame, an aerobic cavity and an anaerobic cavity which are isolated from each other are arranged in the containing shell, rib plates are fixedly installed on the inner wall of the aerobic cavity and the inner wall of the anaerobic cavity respectively, and a driving mechanism and an aeration mechanism are fixedly installed on the fixing frame respectively. The driving mechanism is connected with the containing shell and used for driving the containing shell to rotate relative to the fixing frame, aeration holes are formed in the aeration mechanism and located in the aerobic cavity, the aerobic cavity and the anaerobic cavity are arranged in the containing shell, annular boxes are arranged respectively, and an aerobic sludge bed and an anaerobic sludge bed can be contained respectively. And the circumferential rib plates can respectively drive ed