The invention discloses a blast furnace top combustion type spray nozzle brick of a hot-blast stove combustor. The blast furnace top combustion type spray nozzle brick comprises a spray nozzle brick body which is in the shape of a right-angled trapezoid; a plurality of grooves are formed in the front surface of the spray nozzle brick body; a positioning belt is arranged among the grooves; a plurality of bumps are arranged on the back surface of the spray nozzle brick body; the grooves and the bumps are positioned on the same axis; and the grooves and the bumps are matched. The grooves are arranged in parallel in rows, and the bumps are arranged in parallel in rows. The width of the grooves is a bit greater than that of the bumps, and the depth of the grooves is a bit greater than that of the bumps; and the positioning belt is positioned between the grooves at the two sides. The burner spray nozzle disclosed by the invention enables air and coal gas to form certain angle, so that the purpose of sufficiently mixing the air with the coal gas is achieved. The spray nozzle brick does not move, and the dimension of a spray nozzle does not change, so that the pre-mixing of the coal and the coal gas achieves good effect, and the coal gas is completely combusted, thereby improving the combustion efficiency of the hot-blast stove and saving the energy resources.