Water discharging device for coal mine thousand-meter drilling

The utility model provides a water discharging device for coal mine thousand-meter drilling. The water discharging device comprises a gas pipe and a first switch valve, wherein two ends of the gas pipe are sealed, the first switch valve is arranged on the gas pipe and used for being connected with a drilling pipeline. A wired hose is arranged on the gas pipe and used for being connected with a pumping and discharging main pipeline, a water discharging device negative pressure valve is arranged on the wired hose, a water guiding pipe is arranged at the lower end of the gas pipe, a water discharging valve and a sub pumping and discharging pipeline used for being connected with the main pumping and discharging pipeline are arranged on the water guiding pipe, and a second switch valve is arranged on the sub pumping and discharging pipeline. Compared with a traditional water discharging device, the water discharging device for the coal mine thousand-meter drilling has the advantages that operation is simple, and g