Environment-friendly and energy-saving drilling device for building construction

The utility model belongs to the technical field of building construction, and particularly relates to an environment-friendly and energy-saving drilling device for building construction, which comprises a mounting bracket and a connecting mechanism arranged above the mounting bracket, and the connecting mechanism comprises a lifting assembly and a sliding assembly; the lifting assembly comprises a first motor, a second threaded shaft and a connecting seat, and the upper end of the mounting bracket is fixedly connected with the first motor; by arranging the electric push rod, when the installed electric push rod works, the connecting block can rotate to a certain extent between the electric push rod and the second rotating shaft, and then the connecting shell can rotate to a certain extent between the first rotating shaft and the electric push rod; and finally, when certain rotation work is carried out between the connecting block and the connecting shaft, certain angle adjustment can be conveniently carried