Dust collection equipment for constructional engineering

The invention relates to the technical field of dust collection equipment, and discloses dust collection equipment for constructional engineering, which comprises an adsorption cylinder, a transmission box is fixedly mounted on the right side of the middle of the adsorption cylinder, a belt conveying device is movably mounted in the transmission box, and a belt pulley in the transmission box is fixedly sleeved with a turbofan. The turbofan is movably connected with the transmission box in a sleeved mode, and the turbofan is movably connected with the adsorption cylinder in a sleeved mode. Through the arrangement of an air suction cylinder and a telescopic rod, the telescopic rod is controlled to adjust the angle of the air suction cylinder, then dust is sucked through different angles, the suction range is expanded, the efficiency of sucking dust in air is improved, in the process, a gear disc is driven to rotate through a driving wheel, and then the air suction cylinder is driven to rotate; the air suction c