Secondary combustion chamber treatment process applied to household garbage pyrolyzing furnace

The invention discloses a secondary combustion chamber treatment process applied to a household garbage pyrolyzing furnace. The process comprises a first step: mixed gas which is not burned completely, contains various ashes and is generated by the pyrolyzing furnace is led into a secondary combustion chamber; a second step: the mixed gas first enters a first combustion chamber in the secondary combustion chamber, and is mixed fully with secondary air in the first combustion chamber for combustion; a third step: the mixed gas having undergone combustion in the first combustion chamber enters asecond combustion chamber, and is mixed with high-temperature fuel oil and air mixture sprayed into the secondary combustion chamber to undergo high-temperature combustion; a fourth step: the mixed gas having undergone combustion in the second combustion chamber enters a third combustion chamber, and is fully mixed with the air entering the third combustion chamber to undergo combustion; and a fifth step: the mixed gas b