PURPOSE: To effectively adhere refractory to repair by allowing the repairing refractory in a projecting tube to project toward the position required to be repaired by the pressure of compressed air from a compressed air supply source connected to the tube. CONSTITUTION: The apparatus for projecting to repair comprises a projecting tube 1, a refractory charging mechanism 2 for charging a predetermined quantity of repairing refractory in the tube 1, and a compressed air supply source 4 connected to the tube 1 via a hose 3. The tube 1 and the mechanism 2 are installed on a table 5. The table 5 is so pivotally secured by a shaft 9 as to rotate the tube 1 on a rotary table 8 rotatably supported to the upper end of the strut 7 of a base 6 in the elevating direction, and elevated by a tilting cylinder 10. Thus, the direction of the tube 1 is arbitrarily selected and the projection is conducted by the pressure to repair the position to be repaired even if the position is at a high place or a remote distance.