Accurate positioning drilling device for gas extraction

The utility model relates to the technical field of gas extraction equipment. The accurate positioning drilling device for gas extraction comprises a bottom plate, a supporting column is fixedly connected to the upper surface of the bottom plate, a gas detector is rotatably connected to the top of the supporting column through a first rolling bearing, a drilling mechanism is fixedly connected to the right side of the supporting column, and a storage battery is fixedly connected to the upper surface of the bottom plate; the drilling mechanism comprises a rotating motor fixedly connected with the right side of the supporting column, the output end of the rotating motor is fixedly connected with a first gear, a second rolling bearing is embedded in the supporting column, the inner wall of thesecond rolling bearing is fixedly connected with a driving cylinder, the outer wall of the driving cylinder is fixedly connected with a second gear, and the second gear is meshed with the first gear.According to the utility