Water intaking facility capable of guiding and draining river sediment in a grading way

The utility model discloses a water intaking facility capable of guiding and draining river sediment in a grading way, comprising a sand basin surrounded by a sediment-diversion sill (1), a water guide wall (2) and a water intaking dam (3) at a shoreside; a trash rack (9) is arranged above the sediment-diversion sill (1), a water intake (5) is arranged above the water intaking dam (3), and a common silt-releasing sluice (6) is arranged at the inner side and the outer side of the water guide wall (2) at the connection position of the water intaking dam (3) and the water guide wall (2). In the utility model, the sediment-diversion sill is used for guiding and the water guide wall is used for water constriction, coarse sands and dirt are guided and drained to the down stream through the silt-releasing sluice or a silt-releasing hole, and the sediment diversion ratio can reach 80-90 percent; and 99 percent of sediment can be intercepted owning to guiding and draining function of a porous silt-releasing gallery wi