PURPOSE: To enable a high power of firing to be attained and further enable a decomposition and assembly to be attained by a method wherein a commercially available small-sized solid fuel loaded in a can is applied in a portable stove using the solid fuel as a heating source.

CONSTITUTION: A lower cylindrical part 1 is formed in a proper form and a commercially available solid fuel loaded in a can be used as its heating source. An intermediate cylinder 6 and an upper cylinder 11 may provide an effect of chimney for assisting a sucking action through suction ports 7 of the intermediate cylinder and a high firing power more than that expected can be attained under a complex effect of a thermal reflecting action at an inner circumferential part and punched discharging holes 14 arranged at the upper cylinder 11 and the like, resulting in that a rice can be cooked with a deep pan. In addition, when this stove is placed above the upper cylinder 11 in case of applying a pan of large diameter as well as a pan of small diameter, the punched discharging holes 14 are shielded and a raised piece 14a is placid so as to diminish a discharging action and then a stable and effective combustion effect can be attained.