Sludge settling equipment for sewage treatment

The utility model discloses sludge settling equipment for sewage treatment, which comprises a box body, the upper side wall of the box body is fixedly connected with a motor I, the tail end of an output shaft of the motor I is vertically upward and is fixedly connected with a gear, a rotating shaft is arranged on the upper side wall of the box body in a penetrating manner, and the rotating shaft is fixedly connected with the gear. The outer wall of the end, located outside the box body, of the rotating shaft is fixedly sleeved with a second gear meshed with the first gear, the interior of the rotating shaft is hollow, the end, located outside the box body, of the rotating shaft communicates with a spiral pipe, a plurality of round holes are formed in the outer wall of the spiral pipe, and the outer wall of the spiral pipe is fixedly connected with a vertically-downward stirring rod. A plurality of stirring blades are fixedly connected to the outer wall of the stirring rod. Through the rotation of the spiral p