Furnace wall hole door conveying device for boiler furnace maintenance

The utility model relates to a furnace wall hole door conveying device for boiler furnace maintenance. At present, when a maintainer enters a hearth for maintenance, a radial blind plate needs to be opened and then enters the hearth through a short barrel section, and due to the fact that the size of the short barrel section is limited, much inconvenience is brought when the maintainer enters the hearth. The boiler furnace maintenance furnace wall hole door conveying device comprises side supporting plates (1) and roller assemblies (2), the roller assemblies of the same structure are connected between the two side supporting plates at equal intervals, the roller faces of the roller assemblies are sleeved with a conveying belt (3), the tops of the side supporting plates are fixedly connected with a handrail frame (4) of a U-shaped structure, and the handrail frame (4) is fixedly connected with the side supporting plates. Two hanging rings (5) are symmetrically and fixedly connected to the top of the armrest fr