Middle kindling combustion device with leakage-proof shell and heat insulation structure

The utility model discloses a centrally-arranged kindling combustion device with a leakage-proof shell and a heat insulation structure. The centrally-arranged kindling combustion device comprises an upper shell part, a lower shell part and an ignition device, the combustor has the advantages that the combustion barrel can accumulate heat to promote the environment temperature of the combustion chamber to be increased, the gas combustion reaction speed is increased, the reaction temperature is increased, the bottom of the combustion barrel can effectively prevent high-temperature heat of the combustion chamber from being directly transmitted to the lower mixed gas chamber partition plate, and then unnecessary temperature rise of the mixed gas chamber and internal mixed gas is controlled; a tempering accident caused by over-high temperature rise of the mixed gas can be avoided; due to the small and low fire hole characteristics of the fire distributor, combustion flames of the combustion chamber can be effectiv