Blast furnace taphole grouting pressure head

The utility model discloses a blast furnace taphole grouting pressure head, which comprises a main body and a grouting bent tube and is disposed at one end of a blast-furnace gun head. The main body comprises a front drum section and a rear drum section with different diameters, the rear drum section extends into the gun head to be fixed, a grouting through hole is radially arranged on the front drum section, and the grouting bent tube is disposed on the side wall of the front drum section and communicated with the grouting through hole. The grouting pressure head can be stably fixed on the surface of a taphole mud liner by aid of the blast-furnace gun head and is sealed with the mud linear surface, and slurry is pressed into a taphole channel through the grouting bent tube and the front drum section, so that mud-jacking at clearances on the periphery of the blast furnace taphole can be implemented and maintenance and temperature reduction at an inner lining on the side wall of a hearth on the periphery of th