Efficient energy-saving dehumidification device

The utility model discloses an efficient energy-saving dehumidification device which comprises an insulating support, an air inlet is formed in the lower end of the insulating support, and an air outlet is formed in the upper end of the insulating support. A negative ion discharge layer, at least three layers of V-shaped filter screens, a calcium chloride particle dehumidification filter screen and a positive ion discharge layer which are arranged at intervals are sequentially connected in the insulating bracket from bottom to top, and carbon fiber brush heads are fixedly arranged on the positive ion discharge layer and the negative ion discharge layer; each layer of V-shaped filter screen is provided with a frame, a plurality of V-shaped sheets and a plurality of linear sheets, the plurality of V-shaped sheets and the plurality of linear sheets are mounted in the frame, the plurality of V-shaped sheets and the plurality of linear sheets are vertically staggered to form a square-shaped grid, and the tip ends