Painting spraying device for advertising lamp box cloth

The utility model discloses a painting device for advertising lamp box cloth, and relates to the technical field of painting devices, the painting device comprises a workbench, one side of the workbench is provided with a lifting mechanism used for adjusting the height, through the arrangement of a screw rod, a fixing shell, fan blades and the like, a first motor is started to drive the screw rod to rotate, and the fan blades are driven to rotate; a fixing block is driven to longitudinally slide on a screw rod, a fixing shell longitudinally moves, a connecting block longitudinally slides on a fixing column along with the connecting block, the drying mechanism is driven to integrally longitudinally move, a heating rod is started, then a second motor is started, a cylinder is driven to rotate, a T-shaped column connected with the cylinder is driven to rotate, and gears are driven to rotate; according to the drying device, the gears and the T-shaped column rotate together to drive the fan blades to rotate, and t