The invention discloses a blowing element, a combined blowing brick and a manufacturing method of the combined blowing brick. Blowing channels and anti-seepage and anti-blocking channels are arranged in the blowing element. The anti-seepage and anti-blocking channels are communicated with two or more blowing channels through fluid. According to the blowing element and the blowing brick with the blowing element, steel permeability is not likely to happen in the actual using process, the blowing channel is not blocked in the blowing process, and the blow-off rate is high, so that the oxygen blowing quantity is decreased, and the smelting cost is lowered; due to the high blow-off rate, the burn-through amount of the blowing brick is decreased; and accordingly, the service life of the blowing brick is prolonged, and the smelting cost is lowered.