Ultraviolet sterilization filtering device in household water purifier

The utility model discloses an ultraviolet sterilization filtering device in a household water purifier. Sterilization box, a light reflection layer is arranged in the sterilization box; the left end,the right end and the middle of the light reflection layer are each provided with an ultraviolet lamp assembly. The ultraviolet lamp assembly is detachably connected with the sterilization box; a disinfection pipe is arranged in the sterilization box between every two adjacent ultraviolet lamp assemblies; wherein the top of the disinfection pipe is connected with the water inlet pipe, the bottomof the disinfection pipe is connected with the water outlet pipe, the bottom of the water outlet pipe is connected with the filter box, three filter devices extending to the outside are installed in the filter box and detachably connected with the filter box through locking mechanisms, and a water outlet is formed in the bottom of the filter box. The device is sufficient in sterilization, sufficient in filtration and conve