This smelting furnace is introduced in Isasm smelting furnace smelting process, applied to smelting of matte. Isasm smelting furnace and Ausmelt furnace are belonging to the same technical branch; they are basis on the submerged smelting process for spray gun. Shantou Huaxing forged copper plate drilled structure copper tap block includes vertical type, horizontal type, outlet inner tap block etc.