An intelligent fire-fighting trolley in a floor comprises a corridor, a track is installed in the middle of the top face of the corridor, the cross section of the track is in an inverted trapezoid shape, the lower end of the track is connected with a water pipe, a cylinder is arranged below the water pipe, annular blind holes are formed in the left end face and the right end face of the cylinder, the left annular blind hole and the right annular blind hole communicate through a channel, and the annular blind holes are internally connected with second barrels; and annular pistons are installed in the annular blind holes, the outer ends of the second barrels are connected with plungers, the outer ends, corresponding to the cylinder, of the inner sides of the second barrels are connected with fixing plates, the plungers are connected with the fixing plates through tension mechanisms, the plungers are connected with adjusting mechanisms, a box body is arranged on the lower side of the cylinder, and a motor is installed on the inner side face of the box body. The problem that firefighters difficultly break a door in the fire fighting process is solved, a large amount of physical strength can be saved for the firefighters in the door breaking process, life danger caused by poor physical strength is avoided, meanwhile, the device can break the door rapidly, the door breaking waiting time in the fire fighting process is saved, the firefighters can press fire behaviors in time, and personnel injury and material losses are reduced.