A cleaning flushing device comprises a grip, a nozzle, and a current guide block. The grip has two ends respectively provided with an inlet joint and an outlet joint. The grip contains therein an inlet channel communicated with the end faces of the inlet joint and the outlet joint. One end of the nozzle is provided with a connection part to be connected on the outlet joint. The connection part has an end face provided with a receiving slot communicated with the inlet channel, and the other end face of the nozzle has an outlet hole thereon penetrating to the receiving slot and having a smaller aperture. The current guide block is combined in the receiving slot, and the peripheral surface of the current guide block has at least a spiral shaped current guide groove passing through the two end faces. The current guide groove is matched up with the wall of the receiving slot to form a spiral channel. The two-stage boosting action of the spiral channel and the outlet hole can enable the water column jetted from the outlet hole to have higher force, thereby greatly enhancing the flushing efficiency.一種潔淨沖洗裝置,係包括一握柄、一噴頭及一導流塊,該握柄的兩端分別具有一進水接頭及一出水接頭,於該握柄的內部具有與該進水接頭及該出水接頭之端面相通之一進水流道,該噴頭的一端具有一結合部供結合在該出水接頭上,該結合部的端面具有與該進水流道相通之一容槽,該噴頭的另一端面上具有貫通到該容槽且孔徑較小之一出水孔,該導流塊係結合在該容槽中,且該導流塊的周面具有呈螺旋狀且貫通到兩端面之至少一導流溝槽,該導流溝槽係配合該容槽之槽壁而形成螺旋流道;藉由該螺旋流道及該出水孔的兩段式增壓作用係可使出水孔噴出的水柱具有較強勁的力道,因此係可大幅提昇沖洗效率。10‧‧‧握柄12‧‧‧出水接頭13‧‧‧進水流道14‧‧‧螺孔20‧‧‧噴頭21‧‧‧結合部22‧‧‧容槽23‧‧‧錐形流道24‧‧‧出水孔30‧‧‧導流塊31‧‧‧導流溝槽