Multifunctional cleaning and air-expelling device and manufacturing method thereof

The embodiment of the invention discloses a multifunctional cleaning and air-expelling device and a manufacturing method thereof. The air-expelling device comprises an air-expelling strip, a cleaningcylinder and a handle, the cross section of the air-expelling strip is rectangular or runway-shaped or octagonal, the cleaning cylinder is composed of an upper roller and a lower roller, and the periphery of the air-expelling strip and the periphery of the cleaning cylinder are both coated with dust-free cleaning cloth layers; an upper neck correspondingly matched with the lower roller in shape and provided with openings in two ends is concavely formed in the top of the handle, a lower neck provided with openings in two ends is concavely formed in the bottom of the handle, the depth of the lower neck is smaller than the width of the air driving strip, and the cross section of the lower neck is an isosceles trapezoid with the wide inside and the narrow outside; the cleaning cylinder is clamped into the upper neck,