Movable steel structure roof

The invention relates to the technical field of roofs, and discloses a movable steel structure roof. The roof comprises a glass roof and a shielding roof, wherein the glass roof comprises a supporting plate, a containing hole is formed in the upper portion of the supporting plate, the shielding roof is arranged on the glass roof in a sliding mode and located above the containing hole, a driving mechanism for driving the shielding roof to move is arranged on the glass roof and comprises a guide rail arranged above the glass roof and a connecting block arranged below the shielding roof, a fixing groove is formed in the side, away from the glass roof, of the guide rail, a driving rod and a driven rod are rotationally connected into the fixing groove, a driving gear is fixedly connected to the outer circumferential surface of the driving rod, a driven gear is fixedly connected to the circumferential surface of the driven rod, the driving gear and the driven gear are sleeved with a gear belt, the connecting block