Ventilation and smoke exhaust device for fire fighting

The utility model discloses a ventilation and smoke exhaust device for fire protection, which relates to the field of fire protection engineering and comprises a first guide frame, a second guide frame and a plurality of fixing bolts, the first guide frame and the second guide frame are arranged in parallel, a rhombic frame is arranged at one end of the first guide frame and one end of the second guide frame, and the rhombic frame is arranged on the second guide frame. A third guide frame and a fourth guide frame are arranged in the side, away from the first guide frame, of the rhombic frame, triangular plates are arranged on the two sides of the ends, away from the rhombic frame, of the third guide frame and the fourth guide frame correspondingly, straight frames are rotationally arranged on one sides of the interiors of the two triangular plates, and a smoke exhaust pipe is arranged in the belt; the smoke exhaust hose can be installed at the top ends of the four guide frames, multiple positions of the smoke