Abstract: A tower-like wind turbine, that is with vertical axis, comprising a cradle-like supporting structure (2) including and supporting a rotor with vertical axis (3), coaxial thereto, with a central shaft connected to an electric generator, wherein a rotor is provided extending between two horizontal bases (8, 13), the periphery thereof is connected by means of a crown of vertical axes (27) parallel to the central shaft (20), on each one a vertical blade being engaged apt to be rotated by 90° around its own axis; wherein the cradle-like supporting structure is swivelling so as to have the same up-wind and down-wind side, the cradle-like supporting structure comprising: a first device (A) (24) for rotating the blades arranged up-wind, to rotate by 90° the respective blades by changing the orientation thereof from tangential to radial; and a second device (B) (23) for rotating the blades arranged down-wind, to rotate by 90° the respective blades by changing the orientation thereof from radial to tangential; so that