The invention discloses a turbulent flow double-system dry-type evaporator of a water chilling unit. The turbulent flow double-system dry-type evaporator of the water chilling unit comprises a shell,a copper tube, a front end cover, a rear end cover and turbulence plates; a front bottom plate and a rear bottom plate are welded to the two ends of the shell correspondingly, the front bottom plate is a round plate, and the front bottom plate is welded to the front end of the shell; the inner wall surface and the outer wall surface of the copper tube are both surfaces with threads; a medium inletand a medium outlet are correspondingly provided with sleeves in a welded mode; the rear end cover is welded to the rear end of the shell, and the rear end cover is formed by welding a cylindrical shell and a part of a spherical surface; and the plurality of turbulence plates are arranged and a plurality of fixing rods penetrating through each turbulence plate are arranged. According to the turbulent flow double-system dry-type evaporator of the water chilling unit, the shell is a thin shell, therefore parts of the front end and the rear end cannot be installed in the form of a bolt or a flange, so that after the front bottom plate and the rear bottom plate are firstly welded and installed, bolt holes or flange holes can be formed in the front bottom plate and the rear bottom plate and installation of other parts can be facilitated.