The invention relates to a city
tap water supplying and cleaning device and in particular relates to a water-supply pipeline filtering device. The water-supply pipeline filtering device comprises a connecting
barrel with
flange plates at two ends, wherein the
pipe diameter of the middle part of the connecting
barrel is greater than the
pipe diameters of two ends of the connecting
barrel, a tubular filter screen is arranged in the connecting barrel, one end of the filter screen is fixedly connected with the water inlet end of the connecting barrel, a sheet-like water guide valve is arranged in the filter screen, the water guide valve is the same as the cross section of the inner pore of the filter screen in shape, the water guide valve is connected to a
handle on the outer wall of the connecting barrel by a valve rod, the other end of the filter screen is closed, a blow-off
pipe introduced into the filter screen is arranged at the closed end of the filter screen, the other end of the blow-off pipe is arranged outside the connecting barrel and is sealed by a cover, a pressure spring is arranged between the closed end of the filter screen and the water guide valve, and the outer
diameter of the pressure spring pushes against the inner wall of the filter screen. According to the water-supply pipeline filtering device,
tap water can be filtered, and the filtering device can be cleaned and regenerated well.