Roller shutter fireproof device for preventing fire from spreading

The utility model relates to the technical field of fire prevention, and discloses a roller shutter fire prevention device for preventing fire spreading, which comprises a fixed plate, a first clip-shaped groove and a second clip-shaped groove are arranged on the lower surface of the fixed plate, first motors are fixedly connected to four corners in the first clip-shaped groove, and second motors are fixedly connected to four corners in the second clip-shaped groove. First winding rods are fixedly connected to output shafts of the first motors, the first winding rods are driven by the first motors to rotate, then first fireproof cloth wound on the outer side walls of the first winding rods is wound, a PLC and the four first motors are arranged in the fixing plate, the PLC controls the four first motors to be started at the same time, and the first winding rods are driven by the first motors to rotate. The four sets of first fireproof cloth are put down at the same time to form a long column body, magnetic str