The invention provides a
sewage filtering device for a ground cleaning
machine, and belongs to the technical field of ground cleaning machines, the
sewage filtering device comprises a
sewage tank and a
clean water tank, the lower end of the right side of the sewage tank is communicated with the upper end of the left side of the
clean water tank through a communicating
pipe, a worm is arranged on the upper surface of the sewage tank, and the front end of the worm is in meshed connection with a worm wheel; a rotating shaft is arranged at the lower end of the worm wheel, a
rotating disc is arranged at the lower end of the rotating shaft, the rotating shaft and the
rotating disc are rotationally mounted in the upper end of the sewage tank, lifting blocks are arranged in the left end and the right end of the
rotating disc, and threaded sleeving blocks are in threaded connection with the circumferential surfaces of the lower ends of the two lifting blocks. Through the arrangement of the filter cylinder, an intermittent gear and a circular vertical rod, filter holes can rotate in a
small range, sewage in the filter holes can be rapidly filtered, the effect that impurities in the sewage block
water flow is reduced, the impurities can be thrown, the effect that the impurities block the filter holes is reduced, and the filter efficiency is further improved.