Container unloading device for preventing flying dust

The invention provides a container unloading device for preventing flying dust. The container unloading device for preventing the flying dust comprises a main beam, two installation frames which are arranged on an upper hanging bracket and can move along with the upper hanging bracket, and folding cord fabrics arranged at the bottoms of the installation frames and used for shielding the flying dust on the front and rear side surfaces of the upper hanging bracket, wherein a guide groove is formed in the outer side of the main beam; the bottom end parts of the installation frames are connected onto the side wall of the middle of the upper hanging bracket in a threaded mode; the cross section of each installation frame is rectangular; the folding curtain fabrics can be folded leftwards and rightwards, and the design principle of the folding curtain fabrics is like the folding or unfolding process of a folding fan; the cross section of a fixed block is rectangular; and the cross section ofa rope body installation