Drilling device for highway construction

The utility model belongs to the field of highway construction equipment, and particularly relates to a drilling device for highway construction, which comprises a dustproof box and a filter box, the top of the dustproof box is fixedly connected with the filter box through a connecting rod, a fan is fixedly assembled in the middle of the top of the dustproof box, and the front surface of the fan is communicated with an air inlet pipe. The ends of the air inlet pipes penetrate through the dustproof box and communicate with dust suction heads, the top of the fan communicates with an inner cavity of the filter box through an air outlet pipe, and water tanks are fixedly connected to the two sides of an inner cavity of the dustproof box through bolts. Through the structural design of a fan, an air inlet pipe and a dust collection head, dust generated by drilling is adsorbed by the dust collection head and discharged into an inner cavity of a filter box for storage, the dust removal function is achieved, the proble