Fire-fighting pipeline laying and fixing device

The utility model discloses a fire-fighting pipeline laying and fixing device which comprises a main supporting column, and angle adjusting supporting rod assemblies are assembled and connected to the two ends of the main supporting column respectively. Each angle adjusting supporting rod assembly comprises a fixing base fixedly connected to the main supporting column, an angle adjusting wheel is rotationally connected to the fixing base, and a plurality of auxiliary supporting rods are hinged to the angle adjusting wheel. A plurality of angle adjusting screw holes are formed in the angle adjusting wheel, and locking screw rods locked on the angle adjusting screw holes are in threaded connection with the fixed seat; the top and the bottom of the main supporting column are fixedly connected with a plurality of vertical supporting rods arranged at intervals correspondingly. The fire-fighting pipeline laying and fixing device further comprises a connecting frame fixedly connected between the vertical supporting