Water-cooled heterogeneous porous medium burner

The utility model relates to a water-cooled heterogeneous porous medium combustor which comprises a combustion chamber, a heat exchange surface, a cooling water chamber, a water inlet pipe, a water outlet pipe, a vertical smoke chamber, a horizontal smoke chamber, a condensate pipe and heterogeneous porous media. The cooling water chamber covers the outer sides of the backfire stopper, the combustion chamber and the vertical flue gas chamber; the heterogeneous porous medium is filled in the combustion chamber and exchanges heat with fluid in the cooling water chamber through the heat exchange surface; pores of the heterogeneous porous medium are distributed unevenly, the pores are distributed in bilateral symmetry about the central longitudinal axis of the longitudinal section of the combustion chamber, the pore density gradually decreases from the central longitudinal axis of the longitudinal section of the combustion chamber to the two sides in a step mode along the transverse axis, and the decreasing ampli