This waterless cannon mud uses high-quality bauxite and high-purity silicon carbide as main raw materials, adding various special micro-powders and phosphate binders. The product has excellent adhesion, firmly bonding with the iron shell and furnace lining to form an integral structure. It generates slight expansion upon heating, filling the gap between the blast furnace shell and cooling wall, as well as the space between the hot blast stove shell and the furnace lining, effectively preventing gas leakage through the gaps.