Efficient energy-saving pyrolysis combustion furnace

The utility model discloses an efficient energy-saving pyrolysis combustion furnace comprising a furnace body and a combustion chamber, wherein the furnace body is provided with an upper layer fire bar and a lower layer fire bar therein, a first pyrolysis precombustion chamber is arranged between the two layers of fire bars, a sidewall of the first pyrolysis precombustion chamber is provided with a first feed inlet, sidewalls of the furnace body below the lower layer fire bar are provided with an ash outlet and a lower air inlet, a second pyrolysis precombustion chamber is arranged between the upper layer fire bar and a top board of the furnace body, a sidewall of the second pyrolysis precombustion chamber is provided with a second feed inlet, the top board of the furnace body is provided with an air vent which is connected with the combustion chamber, the upper layer fire bar is formed by hollow tubes connected in series, one end of the upper layer fire bar is connected with a clamping sleeve pipe, the other end of the upper layer fire bar extends to the combustion chamber, the sidewall of the first pyrolysis precombustion chamber is provided with the clamping sleeve pipe which is communicated with the outside of the furnace body, an inner pipe of the clamping sleeve pipe is an air inlet pipe, an outer pipe of the clamping sleeve pipe is a water inlet pipe, the air inlet pipe and the water inlet pipe fuse into one hollow tube at the connecting part with the upper layer fire bar. The pyrolysis combustion furnace in the utility model changes combustion mode of the present furnace, and realizes full vaporizing combustion of fuels by using a pyrolysis principle, thus the pyrolysis combustion furnace has the advantages of full combustion, energy saving, no black smoke, no pollution, wide fuel applicability, changing waste into valuables and saving fuel cost, wherein straws, garbage, etc. can be used as the fuels.