To provide a heating furnace for a regenerative burner capable of improving a temperature accuracy while preventing irregular burning of a material, increasing a thermal transmittance amount, avoiding a low temperature corrosion, restricting an increased NOx, and keeping a unit requirement of fuel and a heat recovery rate.

There is provided a heating furnace for a regenerative burner in which a regenerative burner 3 is fixed to a furnace main body 2, and a major circuit 4 for blowing air and sucking discharged gas is arranged to be communicated with the regenerative burner 3. An auxiliary circuit 5 for feeding the discharged gas to the furnace main body 2 is characteristically arranged to be branched from the major circuit 4, and the auxiliary circuit 5 is provided with a damper 20 for adjusting a feeding amount of the discharged gas.