The invention relates to a disturbed double-system dry evaporator of a central air conditioner. The disturbed double-system dry evaporator comprises a housing, a copper tube, a front end cover, a backend cover and spoilers, wherein a front bottom plate and a back bottom plate are respectively welded to both ends of the housing, and the front bottom plate is a circular plate and is welded to the front end of the housing; the inner wall surface and the outer wall surface of the copper tube are surfaces with threads; sleeves are respectively welded to a medium inlet and a medium outlet; the backend cover is welded to the back end of the housing, and the back end cover is formed in a way that a cylindrical shell is welded with a part of spherical surface; and a plurality of spoilers are arranged, and a plurality of fixed rods penetrate through each spoiler. The housing of the disturbed double-system dry evaporator is a thin shell, components on the front end and the back end cannot be installed by adopting bolts or flanges, and therefore, after the front bottom plate and the back bottom plate are welded and installed, bolt holes or flange holes can be formed in the front bottom plateand the back bottom plate, so that other components are convenient to install.