Coal bed gas engines spark plug mounting device

The utility model relates to a spark plug mounting device for a coal-bed gas engine, belonging to the field of gas engine parts, comprising a spark plug mounting body arranged on a cylinder, which is characterized in that: the spark plug mounting body is a hollow structure monomer independent to the cylinder; the monomer comprises a lower body, an upper body, a nozzle and a duct arranged successively. After improving the prior art, the massive improvement to the cylinder cover is saved, and the design of the spark plug mounting body not only ensures a good isolation of the spark plug from the oil chamber, but also facilitates the mounting of the spark plug and avoids the abnormal discharging of the spark plug; the spark plug mounting device has the advantages of simple structure, easy operation and control, safe and reliable performance and convenient cleaning and maintenance.