Visual image type fire detection alarm device

The utility model discloses a visual image type fire detection alarm device, which comprises a shell and relates to the technical field of fire detection equipment, a monitoring detection head is arranged in the shell, and a cleaning structure is arranged in the shell; the cleaning structure further comprises spring blocks, the spring blocks are installed on the two sides of the interior of the shell, one end of each spring block is connected with a cleaning cotton plate, limiting plates are stably installed on the two sides of the interior of the shell, one end of the interior of the shell is connected with a pneumatic telescopic rod, and a smoke sensor is installed in the center of the bottom end of the shell. According to the device disclosed by the utility model, the monitoring detection head can be cleaned through friction between the monitoring detection head and the cleaning cotton plate when the monitoring detection head moves back and forth, and the position of the movable plate can be adjusted throu