To provide combustion equipment of solid fuel such as firewood, capable of properly and efficiently burning the solid fuel such as the firewood, by making the most use of the volume of a combustion chamber with a rational and simple structure capable of coping even with an enlargement.

This combustion equipment of the solid fuel such as the firewood, has the combustion chamber 10 of forming the longitudinal direction longer than the lateral direction by a front plate part 11, a back plate part 12 and a side wall part 13. An opening-closing part 15 is arranged in the front plate part 11 for adjusting supply of air for combustion. An interval holding part 21 is fixedly arranged in the back plate part 12 for preventing the solid fuel from being packed in so that a secondary combustion space 20 can be secured in a rear part in the combustion chamber 10.