The invention shows improved operational conditions. It comprises a floating structure with a single floating central body (1), provided with an elongated configuration according to a longitudinal direction, wherein the lower portion of the central body (1) is intended to be submerged. It additionally comprises: a base (3) located in the upper portion of the central body (1) to support at least one wind turbine (4); and at least four legs (2) located in the lower portion of the central body (1) and provided with: a) a first end, by which they are integrally attached to the central body (1); b) a second end, opposite to the first end, and more distant from the central body (1); and c) at least a porch (6) located in the second end of each leg (2), said porch (6) comprising a first drilling (12) in longitudinal direction to anchor the floating platform to the sea bed (5).