Waste incineration device capable of improving incineration heat efficiency

The waste incineration device comprises a base, an incineration box is fixedly installed on the outer surface of the upper end of the base, a refining and smashing box is fixedly installed in the middle of the outer surface of the upper end of the incineration box, and a primary smashing box is fixedly connected to the outer surface of the upper end of the refining and smashing box; and a feeding groove is fixedly formed in the outer surface of the upper end of the primary crushing box. According to the waste incineration device capable of improving the incineration heat efficiency, heat generated by waste incineration can be reused through the arranged heat recycling device, resource waste is reduced, and the waste incineration device capable of improving the incineration heat efficiency has the advantages that the heat recycling device is arranged, so that the waste incineration efficiency is improved. And through the arrangement of the telescopic gas guide mechanism, hot gas treated in the waste gas treatm