The utility model belongs to the field of automatic washing devices and discloses a jet-type device for washing a solar cell panel automatically. A guide rail is fixed at one end of a support; a slide block is arrangedon the guide rail in a sliding way; a telescopic shaft is fixedly arrangedon the slide block; and a washing hairy brush is fixedly arrangedon an end head of the telescopic shaft through a connecting plate. The jet-type device for washing the solar cell panel automatically is unique in concept, convenient and practical; dust on the surface of the solar cell panel can be removedthrough gasjetted out from a circular bottom plate and the rotation of the washing hairy brush; the jetted gas can drive the dust to move, so that the dust is removed under the action of the washing hairy brush; heat of the cell panel is taken away, so that the temperature of the cell is reduced, and the conversion efficiency of the cell is improved; and the solar cell panel is washed automatically and efficientlyin an energy-saving way, thereby improving the electricity generating efficiency of the solar cell panel.