Portable power transmission line monitoring device

The invention discloses a portable power transmission line monitoring device, and relates to the technical field of portable power transmission line monitoring devices, in particular to the portable power transmission line monitoring device. The portable power transmission line monitoring device comprises a sleeve shell and cover shells, preliminary cleaning mechanisms are installed on the upper side and the lower side of the sleeve shell correspondingly, a cleaning and dirt removing mechanism is arranged in the sleeve shell, a power transmission line body penetrates through the interior of the cleaning and dirt removing mechanism, cameras are arranged in the cover shells, and the cover shells are located on the upper side and the lower side of one side of the sleeve shell. The portable power transmission line monitoring device is provided with the preliminary cleaning mechanisms, and a cleaning sponge roller is in contact with the power transmission line body, so that the cleaning sponge roller can provide e