Multifunctional portable plastic packaging bag

The utility model discloses a multifunctional portable plastic packaging bag which comprises a bag face, lifting lugs are fixedly arranged on the two sides of the top end of the bag face, supporting structures are arranged at the top ends of the two sides of the bag face, each supporting structure comprises a bag ring, the bottom end of each bag ring is fixedly connected with the bag face, and a first opening strip is arranged in each bag ring. A second opening strip is hinged to one end of the first opening strip through an arranged hinge, transverse folding strips and vertical folding strips are fixedly connected to the two sides of the inner wall of the bag face, and top folding strips are fixedly arranged at the top ends of the inner walls of the lifting lugs; the folding structure is arranged, in the using process, the folded first opening strip and the folded second opening strip are unfolded, after unfolding, the movable shell slides, the sliding plate drives the sliding block, the sliding strip slides