Sewage treatment device for water supply and drainage engineering

The invention discloses a sewage treatment device for water supply and drainage engineering, and relates to the technical field of sewage treatment devices. A connecting port is formed in the side wall of the mounting box, a first drain outlet is formed in the bottom of the mounting box, and a mounting hole is formed in the side, away from the connecting port, of the mounting box; the solar mechanism is arranged at the top of the mounting box; the first filter screen is arranged in the mounting box, corresponds to the connecting port and is configured to collect pollutants; the gravity sensor is arranged on the first filter screen; a second drain outlet is formed in the position, close to the bottom, of the side wall of the collecting box, and a notch corresponding to the first filter screen is formed in the side wall of the collecting box; the two ends of the telescopic adjusting mechanism are hinged to the mounting box and the collecting box respectively; and the two ends of the dumping mechanism are connec