Domestic water pollution detection device

The utility model discloses a domestic water pollution detection device which comprises a detection box, a cleaning nozzle and a detection piece, a mounting hole is formed in the side wall of the top of the detection box, the cleaning nozzle is mounted at the position, where the mounting hole is formed, of the detection box, and a water spraying opening of the cleaning nozzle faces the interior of the detection box; a detection bottle used for containing domestic water is detachably installed in the detection box, the detection piece is located in the detection box, the detection piece is located over the detection bottle, and the detection piece is connected with a lifting assembly used for driving the detection piece to move in the direction close to or away from the cleaning spray head. The device has the advantages that the cleaning nozzle is aligned to the detection end of the detection part for cleaning, the detection part can be directly used for detection in the next detection, residual detection subs