To provide an extremely marketable innovative stove with a dry distillation gas afterburner that is compact for footprint reduction and streamlines combustion in the stove, and such an afterburner.

An afterburning furnace 2 is disposed over a gasification stove furnace 1, and both furnaces 1 and 2 are interconnected via a gas passage 7 having a smaller inside diameter than the furnaces 1 and 2. A gas burner, electric heater or kerosene burner is disposed to promote combustion in the afterburning furnace 2. Inflammable gas generated by dry distillation gasification of firewood or solid fuel in the gasification stove furnace 1 is introduced via the communication part 7 into the afterburning furnace 2, which provides afterburning.

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