Drilling device for pipe for construction site

The utility model belongs to the field of pipe machining equipment, and particularly relates to a drilling device for a pipe for a construction site, which comprises supporting legs placed on the construction site, a box body is fixedly mounted at the tops of the multiple supporting legs, and a supporting plate is fixedly mounted between the inner sides of the box body. Supporting tables are fixedly installed on the left side and the right side of the top of the supporting plate correspondingly, a first motor is fixedly installed on the top of the supporting table on the left side, a first rotating shaft is fixedly installed at the output end of the first motor, a belt wheel is fixedly installed on the outer side of the first rotating shaft, and a threaded rod is arranged on the inner side of the belt wheel. One end of the threaded rod is rotationally installed on the inner wall of the right side of the box body, and the outer side of the threaded rod is in threaded connection with a sliding block. The drilli