Water drainage structure

The invention relates to the field of drainage consolidation, in particular to a water drainage structure. The water drainage structure comprises a framework and a water permeable membrane, wherein the framework comprises at least two main plates and a connecting plate; two side surfaces of each main plate are first working surfaces; a plurality of first water drainage grooves are formed in each first working surface in the same direction; the first working surfaces of the two adjacent main plates are arranged oppositely and the first water drainage grooves are parallel to one another; the twoadjacent main plates are connected to form a whole body by a connecting plate; the connecting plate is perpendicular to the first water drainage grooves; the water permeable membrane is arranged on the first working surfaces, and covers the first water drainage grooves to form a first water drainage channel with openings in two ends. The invention provides the water drainage structure, the main plates are connected to fo