Combined garbage incinerator

The utility model discloses a combined garbage incinerator, and belongs to the technical field of garbage incineration equipment. The utility model solves the problem that the existing garbage incinerator is easily forced to stop due to blockage or other faults of a flue gas treatment system above the garbage incinerator. A heating medium outlet of the waste heat boiler is communicated with the flue gas treatment system through a second pipeline; the flue gas treatment system comprises a bag-type dust collector and a flue gas washing tower; wherein the cross section of the flue gas washing tower is trivalvular; a porous partition plate is arranged between every two adjacent petals; a flue gas treatment chamber is formed between every two adjacent porous partition plates and the side wall of the flue gas washing tower; an aqueous solution inlet is formed in the upper side wall of the flue gas washing tower; a water supply pipe is inserted into the aqueous solution inlet, three spray heads are arranged on the w