Homing water-praying fire-extinguishing device

The utility model relates to a homing water-praying fire-extinguishing device which comprises a main tubular shaft, a water monitor, a sensor, a horizontal rotating mechanism and a vertical rotating mechanism; the homing water-praying fire-extinguishing device is arranged at a working position by a flange plate arranged on the main tubular shaft, an inner cavity of the main tubular shaft is connected with a fire-extinguishing water source, and the horizontal rotating mechanism drives a rack to rotate around the main tubular shaft in a horizontal plane; the vertical rotating mechanism drives the water monitor to rotate in a vertical plane; the sensor detects the position of a fire source. The homing water-praying fire-extinguishing device disclosed by the utility model has the beneficial effects that the occurrence and existence of a fire disaster are sensed by using a device sensitive to rays of the fire disaster, and an automatic fire-extinguishing system is formed through a control circuit, carries out itinerant scanning and accurate positioning in a protected three-dimensional space range in all directions, and drives the fire-extinguishing device to rapidly and accurately aim a water-praying nozzle at a fire source, so that a fire-extinguishing agent is sprayed to ignition points in time, and then the initially combusted fire source is extinguished during the most effective extinguishing time period at the fastest response speed.