Neck-hanging wire closing-up structure of neck-hanging fan and neck-hanging fan

The utility model discloses a neck-hanging fan and a neck-hanging wire closing-up structure thereof, the neck-hanging fan comprises a neck-hanging wire and blowing pieces installed at the two ends of the neck-hanging wire, the neck-hanging wire is a flexible neck-hanging wire, the side wall of the neck-hanging wire can deform towards the inner side under pressure, and the neck-hanging wire closing-up structure comprises an embedding groove formed in the side edge of the blowing piece. The first limiting protruding blocks are fixed to the two side walls of the embedding groove, a gap is formed between every two corresponding first limiting protruding blocks and used for allowing the neck hanging line to pass through, and the width of each gap is smaller than that of the neck hanging line. The neck hanging line can be embedded into the embedded groove; and the first limiting blocks are arranged, and the gap between the two corresponding first limiting convex blocks is smaller than the width of the neck hanging