Multi-energy fuel kiln

The utility model relates to a kiln, in particular to a multi-energy fuel kiln. According to the utility model, combustion-supporting air is provided for the gas regenerative chamber when low-calorific-value fuel is not used for combustion, so that the safety of the gas regenerative chamber is improved, and meanwhile, the heat exchange volume of the combustion-supporting air is increased, so thatthe kiln further achieves the effects of energy conservation and emission reduction. The energy-saving furnace comprises a reverser, an air regenerative chamber, a coal gas regenerative chamber, a small furnace, a flame nozzle, a melting chamber and a fuel nozzle, the gas source is connected with a gas inlet of the reverser through a first branch pipe; a gas outlet of the reverser is respectivelycommunicated with the bottoms of the air regenerative chamber and the coal gas regenerative chamber through pipelines; wherein the tops of the air regenerative chamber and the coal gas regenerative chamber are communicated wit