PURPOSE: To suitably restrain the heat load on a furnace body and to improve the durability of the inner surface of a furnace wall by using a non-water cooled inclining function type panel having the suitable thermal stress releasing function and also high degree mechanical characteristic in a repairing of the furnace wall of a blast furnace.

CONSTITUTION: To a remained brick 4 in the damaging part of the furnace wall of a blast furnace and a worn stave cooler 5, the panel 7 is fixed with fixing bolts 8. Into a gap between the panel 7 and the surface of the inner wall, a high adhesive monolithic refractory 10 (phenol resin, etc.) is pressed and packed from a press-in nozzle 9 and cured. The panel 7 is substantially constituted of an aluminum series or non-oxide series ceramic material 7-2 on the surface A at the inner side of furnace and metallic material 7-1 on the surface B at the outer side of furnace. In both the surfaces, from the inner side of furnace to the outer side of furnace, the density of the ceramic material 7-2 is gradually made to low, and reversely, the density of the metallic material 7-1 is made to higher and higher, and the intermediate part C is made to an inclining function type structure composed of complex phase of the ceramic material 7-2 and the metallic material 7-1.