Energy-saving combustion furnace with multiple furnace chambers

The invention discloses an energy-saving combustion furnace with multiple furnace chambers. The energy-saving combustion furnace comprises a first furnace body and a second furnace body, and the first furnace body is arranged on the top of the second furnace body. The second furnace body comprises an inner chamber and an outer chamber; two openable fill water tanks are arranged on the side wall of the outer chamber, corresponding to horizontal-row water flowing tubes; the two fill water tanks are arranged at the two ends of the horizontal-row water flowing tubes. The fill water tanks are communicated with a chamber of the second furnace body, and the horizontal-row water flowing tubes are arranged on the upper portion of the inner chamber. The energy-saving combustion furnace with the multiple furnace chambers is simple and reasonable in structure, easy to manufacture and capable of effectively lowering the manufacturing cost. Through the reasonable structural design, coal can be fully burned, the thermal efficiency is high, resources are saved, and maintaining is easy.