Fire-fighting smoke alarm with probe protection device

The utility model relates to the technical field of fire-fighting articles, in particular to a fire-fighting smoke alarm with a probe protection device, which can improve the protection performance and prevent dust from being accumulated in the alarm. Comprising a shell, a smoke inductive sensor, a plurality of electronic loudspeakers, a metal net cover, a protective cover, a bottom cover, a plurality of connecting rods, a rocker, a connecting shaft, a brush base, a mounting disc and a plurality of fixing bolts, the bottom end of the shell is fixedly connected with the top end of the smoke inductive sensor, a smoke probe is arranged at the bottom end of the smoke inductive sensor, and the electronic loudspeakers are mounted in the shell; the top end of the metal net cover is rotationally connected with the bottom end of the shell, the smoke induction sensor and the smoke probe are both located in the metal net cover, threads are arranged on the inner wall of the protection cover, the protection cover is in th