Filtering device for septic tank

The filtering device comprises the septic tank, an excrement inlet, a storage chamber, a filtering chamber, a clarifying chamber, a water outlet, a crushing assembly and a filtering assembly, the excrement inlet is formed in the septic tank, the storage chamber is arranged in the septic tank and is arranged at the lower end of the excrement inlet, the filtering chamber is arranged in the septic tank and is arranged on one side of the storage chamber, and the clarifying chamber is arranged in the septic tank. The clarifying chamber is arranged in the septic tank and arranged on the side, away from the storage chamber, of the filtering chamber, the water outlet is formed in the septic tank and arranged on one side of the clarifying chamber, the crushing assembly is arranged in the storage chamber, and the filtering assembly is arranged in the septic tank. The utility model belongs to the technical field of septic tanks, and particularly relates to a filtering device for a septic tank, which is used for accelera