A glass smelting crucible furnace with exhausting waste gas in forward direction and recovering heat energy in reverse direction features that its combustion box above grate has ash layer, fire layer, coal layer and air layer, its combustion chamber is composed of pre-burning flame nozzle and smelting chamber, and the fume flow through three fle layers, heat exchanger, and venting from chimney. Its advantages are high and stable furnace temp., low coal consumption no black smoke, and no environmental pollution. |