The utility model relates to a Y-shaped wing panel flocculation reactor, which belongs to the technical field of solid-liquid separation devices and relates to a technical improvement of a water processing device. The Y-shaped wing panel flocculation reactor comprises a water inlet pipe, a Y-shaped wing panel, a diversion folded plate, a flow-disturbing flange plate, a perforation flower wall, a highly effective tipping plate sediment device, a water colleting slot, a water outlet pipe vent, a mud storage funnel, a mud discharge pipe and the like. The traditional flocculation technique has long reaction time, incomplete flocculation, bad effects, big technique equipment volume, big occupied area and high capital expenditure. In order to solve the problems, the utility model provides the Y-shaped wing panel flocculation reactor, wherein an adopted flocculation wing panel has the structure and shape characteristics similar to a Y shape, which enables water current to pass through the Y-shaped wing panel flocculation reactor in a flocculation tank and then to disturb flow to form multiple small vortexes, the particle collision frequency is greatly increased, and more compact alum blossoms are formed, thereby improving the flocculation and separating effects.