Soil layer drilling equipment for construction comprises a baseplate, an air cylinder device, an illuminating apparatus, a cleaning device, a rotary apparatus, a motor device, a pushing device and a positioning device, wherein the baseplate is provided with idler wheels, a first support, a first magnet and a first positioning rod; the air cylinder device comprises a first air cylinder, a first pushing rod, a first frame body, a first spring and a second magnet; the illuminating apparatus comprises a first connecting rack, a lamp bulb and a balancing weight; the cleaning device comprises a first motor, a first rotary shaft, a first turning wheel, brush bristle, a first connecting block and a second connecting rack; the rotary apparatus comprises a second rotary shaft, a cavity, crushing teeth, a drill, a screw rod, a third rotary shaft, a baffle ring, a second spring and a first gear wheel; the motor device comprises a second motor, a second connecting block, a fourth rotary shaft, a second gear wheel, a first fixed mount, a fixed leg and a second positioning rod; the pushing device comprises a second air cylinder, a second pushing rod and a first vertical bar; according to the soil layer drilling equipment provided by the invention, drilling operations can be performed on different soil layers, and the drilling efficiency is high.