Construction sewage filtering apparatus capable of preventing blockage

The invention discloses a building sewage filtering device capable of preventing clogging. A filter element is arranged in the filter box, a water tank is installed on the top of the filter box, an isolation plate is arranged in the filter box, and a separator and a slag discharger are arranged outside the filter box. The separator is provided with a conveying pipe, one end of the conveying pipe communicates with the separator, and the other end is inserted from the top of the water tank into the inside of the water tank, the separator communicates with the slag extractor, and the slag extractor communicates with the filter box; the slag extractor It includes a piston, a piston rod and a cylinder body, the piston rod is connected with a power mechanism, the cylinder body is provided with a slag discharge hole, a connecting arm is arranged outside the cylinder body, a hinge is arranged between the connecting arm and the cylinder body, and a drill pipe. The device has low filtration cost, can separate the solids in the sewage, and then re-filters the sewage to obtain relatively clean water, which is convenient for reuse, and can clean up solid impurities, prevent pipeline blockage, and facilitate unified discharge of solid slag .