Automatic drainer

The utility model discloses an automatic drainer which comprises a right shell and a left shell, the right shell and the left shell are drum-shaped half shells with the same specification, extension edges are fixedly installed on the outer edges of the binding faces of the right shell and the left shell, and fastening grooves are formed in the opposite positions of the two extension edges. A water inlet seat located on the bottom side is assembled on the outer wall of the right shell, a threaded ring is arranged on the outer wall of the outer end of the water inlet seat, and the right shell is sleeved with a water inlet pipe through the water inlet seat in a threaded mode. According to the automatic drainer, due to the arrangement of the right shell and the left shell, the right shell and the left shell can be conveniently assembled through the extension edges and the fastening grooves, the automatic drainer is simple in structure, convenient to disassemble and assemble and suitable for follow-up assembly of