Sewage treatment method and device for solid waste treatment system

The invention relates to the technical field of solid waste sewage treatment, in particular to a sewage treatment method and device for a solid waste treatment system.The device comprises a water filtering tank, a purifying tank is arranged below the water filtering tank, and a plurality of water passing pipes are fixedly communicated between the water filtering tank and the purifying tank at intervals; a water passing filter plate is fixedly mounted at the upper end of the inner side of the water passing pipe, a crushing shaft is rotatably mounted on the water filtering box through a connecting seat, a plurality of crushing cutters are fixedly connected to the crushing shaft at intervals, a motor is fixedly mounted at one end of the purifying box, and a driving shaft of the motor is fixedly connected with a rotating shaft; according to the solid waste treatment system, sewage filter residues in the water filtering tank can be pre-crushed, the situation that sufficient dehydration is difficult to conduct when