Portable folding protector

The utility model discloses a portable folding protective tool which comprises a plurality of main beam arch-shaped folding ridge blocks, inner edge arch-shaped folding ridge blocks and outer edge arch-shaped folding ridge blocks which form a quasi-circular protective tool after being fastened, and the main beam arch-shaped folding ridge blocks are connected through locking ropes in a penetrating mode. The inner side arched folding ridge block and the outer side arched folding ridge block are sequentially arranged on the upper side and the lower side of the main beam arched folding ridge block and connected in a penetrating mode through a connecting rope, and the main beam arched folding ridge block, the inner side arched folding ridge block and the outer side arched folding ridge block of the outer side arched folding ridge block are connected in a penetrating mode through connecting ropes. According to the utility model, a plurality of folding ridge blocks are assembled and spliced to form the quasi-circula