Large steel structure component paint room heating device

The invention discloses a large steel structure component paint room heating device, and relates to the technical field of paint room baking and heating devices. The large steel structure component paint room heating device comprises a paint room and an air compressor. The air compressor is located on the back face of the paint room. According to the large steel structure component paint room heating device, a work switch of the air compressor is switched on, a first solenoid valve in a first air inlet pipeline is opened, heat generated when the air compressor carries out sand blasting work iscollected through the first air inlet pipeline, and the heat in the first air inlet pipeline enters an outdoor pipeline; a second solenoid valve in a first connecting pipeline is opened, and the heatin the outdoor pipeline is conveyed into a conveying pipeline and a second air inlet pipeline through a heat energy conveying fan; and the temperature in the paint room can be effectively raised, thehumidity in the paint room