Air hole special for rock wool smelting furnace mixed with natural gas

The utility model discloses a special air hole for mixed natural gas of a rock wool smelting furnace. The special air hole comprises an air hole main channel, the outlet end of the natural gas pipeline is located in the air hole main channel; the air guide ring is fixed to the inner wall of the air hole main channel and is in a circular ring shape. And the air guide ring is connected with the air mixing ring through a first connecting plate. According to the special combustion-supporting air hole for mixing the natural gas into the rock wool smelting furnace, the natural gas and combustion-supporting air can be graded and mixed at the outlet of the air hole in advance through the air guide ring and the air mixing ring at the front part of the air hole, so that the natural gas is combusted at the outlet of the air hole in advance, the melt temperature at the bottom of the smelting furnace is increased, and the fiber forming quality is improved; natural gas can be prevented from burning on the top furnace wall