The utility model relates to the field of filters, and discloses a municipal
engineering water supply and drainage efficient shunt filter which comprises a water inlet
pipe, an opening and closing mechanism is arranged on the inner wall of the rear end of the water inlet
pipe, the opening and closing mechanism comprises a three-way column arranged on the inner wall of the rear end of the water inlet
pipe, and a through hole is formed in the three-way column. And the upper surface of the three-way column is rotationally connected with a fixed seat. When needing to be used, the filter plate is connected with the main pipe through the connecting
flange, then the rotary knob is rotated, then the rotary knob drives the connecting rod to rotate, when the connecting rod rotates, the fixed rack can be driven to move, then the filter plate can be taken out through the
handle to be replaced or maintained, and after replacement or maintenance is completed, the filter plate is put back into the flow dividing pipe again. And then a rotary knob is rotated, at the moment, a fixing rack is matched with a fixing groove to fix the filter plate, the filter plate can be cleaned or replaced very easily through the mechanism, the maintenance burden of workers is reduced, and the maintenance time of the workers is shortened.