Automatic water draining device for coal mine gas extraction pipeline

The utility model relates to an automatic water draining device for a coal mine gas extraction pipeline. The automatic water draining device comprises an explosive-proof control cabinet and a water storage tank, wherein the explosive-proof control cabinet is provided with a control panel and a circuit board with a CPU (Central Processing Unit); the water storage tank is provided with a water inlet/outlet pipe with an explosive-proof electric valve, a gas inlet pipe and a liquid level sensor and a pressure sensor. The device adopts a design combining the explosive-proof control cabinet, a control circuit, a signal acquisition sensor and the explosive-proof electric valve and is controlled by a CPU processing procedure to realize automatic control over deposited water drainage of the coal mine gas extraction pipeline. The liquid level sensor and the pressure sensor are used for monitoring the operation state of the water draining device so as to further improve the safety and the reliability of the water draini