Anti-blocking septic tank

The anti-blocking septic tank comprises cushion rods, a tank body, a blocking sleeve, a blow-off pipe, an upper cover, a cleaning pipe, a sewage inlet pipe and a crushing assembly, the cushion rods are symmetrically arranged below the tank body, the cleaning pipe is arranged in the center of the top of the tank body, the upper cover is detachably connected to the cleaning pipe in a sleeving mode, the blow-off pipe is arranged at the upper end of the side face of the tank body, and the sewage inlet pipe is arranged on the upper cover. The blocking sleeve is connected to an opening of the blow-off pipe in a sleeving mode, the smashing assembly is arranged at the end, away from the blow-off pipe, in the pool body, one end of the sewage inlet pipe is arranged outside the pool body, and the other end of the sewage inlet pipe is arranged in the smashing assembly. The utility model belongs to the technical field of septic tanks, and particularly relates to an anti-blocking septic tank which is used for crushing excr