The invention discloses a firefighting smoke alarm with a guiding function, which comprises a frame, an information processor and an infrared camera, wherein load wheels are arranged below the frame;a motor and a battery are arranged above the frame; an information memory is arranged below the information processor; a pump is arranged above the information processor; the shell of the pump is provided with a smoke detector; an air inlet pipe is arranged above the pump; the infrared camera is arranged at the tail end of a supporting crossbeam; and a signal antenna is arranged above the supporting crossbeam. The firefighting smoke alarm with the guiding function has the beneficial effects that air can be actively pumped to detect the smoke concentration, the smoke detection precision is improved, a terrain matching and guiding function is provided, a guiding function can be provided for people unfamiliar with the terrain in high-concentration smoke in the fire, and the escape probabilityof people is improved.