Furnace top charge surface ever-burning fire device for long-term damping-down of blast furnace

The utility model discloses an ever-burning fire device for a furnace top charge surface during long-term damping-down of a blast furnace. The ever-burning fire device comprises a supporting pipe, a propane gas pipe and a compressed air pipe, the propane gas pipe is a steel pipe, the tail part of the propane gas pipe is bent, and the propane gas pipe is provided with a gas inlet mechanism; the appearance of the clamp body is of a cuboid-shaped structure, a through groove is formed in the side face of the clamp body, and a clamping and positioning mechanism is arranged in the through groove; the threaded holes are formed in the surface of the clamp body, the threaded holes are symmetrically formed relative to the clamp body, and the clamp body is provided with a butt joint mechanism. The furnace top charge surface ever-burning fire device for the long-term damping-down of the blast furnace is provided with the pipeline rapid clamping and fixing mechanism, three pipelines can be positioned and clamped by utiliz