Combustor

The utility model discloses a combustor. According to the technical scheme, the combustor comprises a shell, a mixed gas chamber is formed in the shell, a gas pipeline is arranged in the mixed gas chamber, an air opening is formed in one side of the shell, a gas mixing chamber is formed in the position, corresponding to the air opening, in the shell, a combustion chamber is formed in the other side, corresponding to the air opening, of the shell, and the gas mixing chamber and the combustion chamber are both communicated with the mixed gas chamber. The gas pipeline comprises a main fire gas inlet pipe and a small fire gas inlet pipe, one end of the main fire gas inlet pipe penetrates out of the shell, and the other end of the main fire gas inlet pipe stretches into the gas mixing chamber. The small fire gas inlet pipe is a three-way pipeline and respectively comprises a gas inlet end, an air inlet end and a gas outlet end, the gas inlet end penetrates out of the shell, the air inlet end stretches into the gas mixing chamber, the gas outlet end stretches into the combustion chamber and is connected with a furnace core, a pair of fire ion induction probes corresponding to the furnace core is arranged in the combustion chamber, and the fire ion induction probes are externally connected with an igniter. The combustor can achieve small fire combustion and large fire combustion, and is full and thorough in combustion.