The invention discloses a portable illuminating multi-purpose fan, and aims to provide a multi-purpose electromechanical composite product which is portable, can illuminate, can charge, can make people enjoy the cool, can cool and can blow dust. According to the technical scheme adopted by the invention, the portable illuminating multi-purpose fan comprises a case body, wherein air outlet tubes capable of being bent are connected above the case box; illuminating lamps are arranged outside the tubes; a fan is arranged in the machine body for supplying air; a dust-filtration protective cover isarranged outside the outer wall of the machine body; an illuminating fan switch and a charging interface are arranged on the right side wall of the case body; and a buckle is arranged on the center ofthe rear wall of the case body, so that the fan is buckled on a waist.