Construction method for unequal-height construction roof of high-rise steel structure house

The invention discloses a construction method for an unequal-height construction roof of a high-rise steel structure house; the method comprises the steps that S1, a core tube is built in advance, and a core tube roof concrete layer is poured on the built core tube; S2, an outer frame is built, the outer frame is arranged along the periphery of the core tube, after the outer frame is constructed to the height of a roof layer, an outer frame roof concrete layer is poured, the core tube roof concrete layer and the outer frame roof concrete layer jointly form the roof layer, and an annular construction joint is formed between the core tube roof concrete layer and the outer frame roof concrete layer; and S3, a slope making concrete layer is built, the slope making concrete layer covers the roof layer, a slope making surface of the slope making concrete layer is obliquely and downwards arranged in the direction from the core tube roof concrete layer to the outer frame roof concrete layer, the slope making concrete