Portable directional noise monitoring device

The utility model relates to the technical field of environmental monitoring, and discloses a portable directional noise monitoring device, which comprises a device whole body, a box body, an adjusting block and a fixing bayonet lock, the top of the device whole body is fixedly connected with the box body, the right side of the box body is movably connected with the adjusting block, and the right side of the adjusting block is movably connected with the fixing bayonet lock. The top of the box body is fixedly connected with a metal groove, the top end of the box body is fixedly connected with a hinge shaft, the bottom end of the hinge shaft is movably connected with a cover plate, the top end of the adjusting block is fixedly connected with a vertical rod, and the vertical rod is connected with a detection head. During use, the adjusting block is fixed, the detection head is started, the sound is detected after the detection head is started, the detected data is transmitted to the display through the circuit b