Waterproof device for computer keyboard

The utility model discloses a waterproof device for a computer keyboard. The keyboard belongs to the technical field of computer keyboards, a flow guide plate is arranged above the circuit board; a fixed block is mounted in the fixed column; the movable plate is movably connected with the limiting groove through a sliding block, drainage holes are formed in the two sides of the fixed column, a first sealing ring is arranged at the contact position of the fixed column and the flow guide plate, a second sealing ring is arranged at the contact position of the fixed column and the keyboard body, and a water outlet hole is formed in one side of the keyboard body. According to the utility model, the first sealing ring and the second sealing ring are arranged; when water enters the fixed column,the movable plate performs first-layer blocking, so that the water slowly flows into the fixed block and then flows onto the flow guide plate through the flow guide hole, the keyboard body inclines towards one side of the wat