Boiler hearth coking observation device

The utility model relates to a boiler hearth coking observation device which comprises a protection plate and an observation mechanism capable of penetrating through the protection plate and extending into a boiler hearth through a fire observation hole. The observation mechanism comprises a hollow moving cylinder with two open ends, the moving cylinder is horizontally arranged, one end of the moving cylinder is connected with a compressed air pipeline through an air delivery pipe, a transparent protective cover is fixed to the other end of the moving cylinder, and a camera is installed in the transparent protective cover; the moving cylinder penetrates through the supporting guide cylinder, and the supporting guide cylinder is connected with the connecting plate through a connecting rod. The protection plate is connected with the outer wall of the boiler through a supporting rod, and a through hole for the observation mechanism to penetrate through is formed in the protection plate. According to the utility