Ultraviolet sterilizer

The utility model discloses an ultraviolet sterilizer, it contains: a barrel includes a water inlet and a delivery port, a light -permeable pipe sets up in the inside of barrel, and light -permeable pipe and barrel separate each other and correspond a first runner the that feed through water inlet in order to form, and light -permeable pipe inside forms a corresponding second runner that feeds through the delivery port, ultraviolet tube group sets up in first runner, and a spiral guide block, setting up in the second runner, the second runner sees through the runner that spiral guide block formed vertical spiral. 本实用新型揭露种紫外线杀菌装置，其包含：筒体，包含有入水口及出水口；可透光导管，设置于筒体的内部，且可透光导管与筒体彼此间隔以形成对应连通入水口的第流道，而可透光导管的内部形成对应连通出水口的第二流道；紫外线灯管组，设置于第流道；以及螺旋导流座，设置于第二流道中，第二流道透过螺旋导流座形成纵向螺旋的流道。