Water supply pipeline dirt removal connector convenient to clean

The utility model provides a water supply pipeline decontamination joint convenient to clean, which comprises a cylinder body detachably connected with a main water inlet pipe through a first flange joint, the bottom of the cylinder body is connected with an obliquely arranged middle pipe, the bottom of the middle pipe is connected with a blow-off pipe, and a valve is arranged on the blow-off pipe; the side wall of the barrel is communicated with a filter pipe, the inner wall of the filter pipe is connected with a retaining shoulder, a filter cartridge is movably arranged in the filter pipe, the water inlet end of the filter cartridge is open, and the other end of the filter cartridge is closed; the open end of the filter cartridge is propped against the surface of the retaining shoulder; a flange sheet is welded at one end of the filter cartridge, and a sealing plate is hermetically bolted on one side of the flange sheet; one end of the spring is propped against the end surface of the closed end of the filte