Mounting structure for smoke exhausting skylight

The utility model discloses a mounting structure for a smoke exhausting skylight. The mounting structure comprises steel channels mounted at the top of a house framework at intervals, wherein support seats which are distributed at intervals are arranged on two sides of the steel channels, a roof board is mounted at upper ends of the support seats, a skylight flashing board is mounted between the steel channels and the roof board, a framework with a rectangular section is mounted at top ends of the steel channels, extension boards are arranged on left and right side boards of the framework in an upper-and-lower manner, the extension boards on the lower side are welded and fixed with upper end surfaces of the steel channels, an arc-shaped top plate is connected and fixed between the extension boards at the upper end, a lighting board attached to the top board is mounted on the upper end surface of the top board, surrounding boards are mounted on the left and right side boards of the framework, skylight bodies are hinged to and mounted on skylight body framework side boards above the surrounding boards, and the skylight bodies are buckled in the surrounding boards when closed. The mounting structure is novel in structural design, attractive in appearance and high in practicability, layout and connection of all components are reasonable, and the overall structure is excellent in ventilation and waterproof airtightness.