A purification device comprises a main body having an open extending horizontally; a rotator in the opening to be rotatably mounted on the main body; and a manipulation structure spaced from and above the rotator and rotatably connected to a top face of the main body, the manipulation structure protruding forward of the main body. The device also includes a water-outlet module with a fixed cover fixed to the rotator through the opening, the fixed cover protruding forward of the main body, and a top of the fixed cover being connected to a bottom of the manipulation structure; a vertically-movable cover held in contact with the fixed cover; and a water-outlet nozzle mounted onto a bottom of the vertically-movable cover. When the vertically-movable cover rises to a highest level, a top of the vertically-movable cover is located in a space between the rotator and the manipulation structure.