Backwashing equipment for V-shaped filter tank

The invention discloses V-shaped filter tank backwashing equipment in the technical field of seawater purification, which comprises a filter tank body, a water inlet cavity arranged on one side of the filter tank body, a water filtering and backwashing assembly arranged in the filter tank body, and a water drainage cavity arranged on the other side of the filter tank body. When backwashing of the filter tank body is guaranteed, the stability of a filter material in the filter tank body is kept, the maintenance cost is reduced, physical support is provided for the quartz sand layer, fixation is assisted, movement of the quartz sand layer caused by water flow impact is reduced, the situation that the local part is too thick or too thin, and consequently the filter efficiency is affected is avoided, and the service life of the filter tank body is prolonged. Meanwhile, loss caused by mutual friction during movement of the quartz sand layers is reduced, and the service life of the quartz sand layers is prolonged.