Abstract: A continuous gas baking furnace includes elements for heating a baking area through which the product which is to be treated passes, formed by at least one module including a heat exchanger with a gas burner and elements for propelling and directing heated air towards a baking area, wherein the gas combustion circuit of the heat exchanger is separate from the circuit of hot air flowing through the baking area, the elements for directing the hot air include paths for directing hot air on both sides of the baking area and a path for evacuating air via the middle of the baking area. The furnace includes members for ensuring pyrolysis of gaseous effluents, the members treating a fraction of the gas circulating in a given section of the furnace, and at least one catalytic bed which is arranged on the hot air circuit.