Multi-point foldable dedusting duster

A multi-point foldable dedusting duster, comprising a duster fixing plate (1), wherein the duster fixing plate (1) comprises a left fixing plate (11), a right end of the left fixing plate (11) is hinged to a left end of a right fixing plate (12), a first fixing lug (121) is fixedly connected to a middle of a rear side wall on a left side of the right fixing plate (12), a plurality of limiting grooves (122) are circumferentially arrayed on an edge on an inner side of a central hole of the first fixing lug (121), a connecting assembly (2) is rotatably inserted into the central hole of the first fixing lug (121), the connecting assembly (2) comprises a rotating shaft (21) sleeved in the central hole of the first fixing lug (121), a spring fixing cover (22) is screwed at an upper end of the rotating shaft (21) through a screw, a shaft cap (23) is fixedly connected to a lower end of the rotating shaft (21), left and right sides of a lower half portion of the rotating shaft (21) are symmetrically provided with limiting convex blocks (24) matched with the limiting grooves (122), a spring (25) is sleeved on a rotating shaft on upper portions of the limiting convex blocks (24), an upper end of the spring (25) is fixedly inserted into a lower portion of the spring fixing cover (22), peripheries of the spring fixing cover (22) and the shaft cap (23) are sleeved on upper and lower ends of a T-shaped connecting member (26) respectively, a connecting rod (3) is inserted into a rear end of the T-shaped connecting member (26), and a handle (4) is sleeved on a rear end of the connecting rod (3).