In the process of using the original pumping drill water release device in Wangpo Mine, problems such as large inspection workload, the water release device easy to accumulate water in a short period of time, which affected the pumping effect of the drill hole, while the existing automatic water release device in the market had a small water release channel, which is prone to block the drainage channel and cannot realize automatic water release. In response to this problem, the solution idea of combining the existing water dischargers with automatic water dischargers to achieve automatic water discharge was proposed, which can realize the water collection and slag filtering function with the large volume of the existing water dischargers and the automatic drainage function of the automatic water dischargers, so that the two water dischargers can be used in combination to achieve complementary advantages. Through the field application test, the results showed that the water can be smoothly discharged through the modified automatic water release device, and only 1~2 times of manual slag discharge per month was needed to ensure the normal operation of the system, compared with the original water release device every 2~3 h full of water, and each shift required special inspectors to inspect the fixed time period and area, the inspection efficiency and water release efficiency were greatly improved.