Building engineering lightning protection structure capable of automatically adjusting position of cleaning cotton

The utility model discloses a building engineering lightning protection structure capable of automatically adjusting the position of cleaning cotton, which comprises a base, the top of the base is fixedly connected with a supporting rod, the top of the supporting rod is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a positioning plate, and an air cylinder at the top of the base is started through a controller. When an air cylinder is started, a push rod at the top of the air cylinder is driven to move, a connecting rod on the outer side of the air cylinder is driven to move through movement of the push rod, and then through cooperative use of the connecting rod and an extrusion spring, a cleaning cover is driven by the push rod to move upwards; the air cylinder retracts through the controller, the cleaning cover moves downwards from the outer side of the lightning rod at the moment, the cleaning cover moves back and forth on the outer side of the lightnin