Protective device based on engineering safety management

The utility model provides a protection device based on engineering safety management, belongs to the technical field of constructional engineering, and aims to solve the problems that when an existing safety helmet is worn on the head of a worker in a semi-circular shape, a construction site may have a large amount of sandstorm and dust, and the face of the worker is flapped by the sandstorm and the dust during construction of the worker; the safety helmet comprises a safety helmet body, a helmet brim, a fixing belt A, a fixing belt B, a warning rotary cleaning mechanism and a mask cleaning mechanism. The helmet brim is fixedly connected to the lower end face of the safety helmet. The fixing band A is fixedly connected to the left side of the lower end face of the brim; the fixing band B is fixedly connected to the right side of the lower end face of the brim; the warning rotary cleaning mechanism is arranged in the safety helmet; and the mask cleaning mechanism is arranged on the front side in the brim. By