Water-gas separation measuring device for measuring coal seam air permeability

The utility model provides a water-gas separation measuring device for coal seam gas permeability measurement. The water-gas separation measuring device comprises a water-gas inlet valve, a water-gas leading-in pipe, a residue filtering tank, an exhaust pipe, an exhaust valve, a filter screen, a water-gas separation measuring device scale plate, a water-gas separation measuring barrel, a drainage valve and a drainage pipe. Firstly, coal cinder is filtered through the filtering tank, then water and gas are separated according to different densities of water and gas, and water in the ascending pressure measuring drill hole can be accurately collected and measured under the condition that the measuring process of the measured air permeability coefficient is not influenced. The device disclosed by the utility model is simple and convenient to use, and the reliability of coal seam gas pressure and air permeability measurement is effectively ensured. 本实用新型提供了一种用于煤层透气性测定的水气分离测量装置，包括进水气阀门、水气导入管、滤渣罐、排气管、排气阀门、过滤网、水气分离测