Oral surgery multifunctional drainage device

The utility model discloses a multifunctional drainage device for oral surgery. The utility model relates to the field of medical auxiliary instruments. Bottom plate, a negative pressure device is fixedly mounted at the top of the bottom plate; a drainage bottle fixedly mounted at the top of the bottom plate is arranged on one side of the negative pressure device; a negative pressure pipe fixedlypenetrates through the top of the negative pressure device, one end of the negative pressure pipe is installed at the top of a drainage bottle in a penetrating mode, a drainage pipe is further fixedlyinstalled at the top of the drainage bottle in a penetrating mode, a cleaning box is fixedly installed at the top of the bottom plate, and a cleaning mechanism is arranged in the cleaning box. According to the utility model, the cleaning mechanism is arranged; the driving motor is started to enable the piston to slide in the water pumping cylinder in a reciprocating mode, the oral cavity of a patient can be flushed and cl