Overflow type disinfection device

The utility model relates to the technical field of water purification equipment, in particular to an overflowing type disinfection device. An overflowing type disinfection device comprises a shell, a photocatalyst mechanism, an ultraviolet lamp tube and a support, the photocatalyst mechanism is installed on the inner wall of the shell, the ultraviolet lamp tube is installed in the shell, the photocatalyst mechanism surrounds the outer side of the ultraviolet lamp tube, the photocatalyst mechanism is installed on the inner wall of the shell through the support, and the ultraviolet lamp tube is installed on the support. A water inlet pipe cover is installed on the top of the shell, a water inlet is formed in the upper portion of the water inlet pipe cover, the water inlet is communicated with a water outlet through an overflowing pipeline, and a water outlet is formed in the top of the shell. The water purifier is simple in structure, convenient to maintain, high in sterilization capability and high in water p