Building air pipe integrated type efficient indirect evaporative cooling fresh air pre-cooling device

The utility model relates to the technical field of coolers, in particular to a building air pipe integrated type efficient indirect evaporative cooling fresh air pre-cooling device which comprises a ventilation pipe, a heat exchange device, a first air inlet fan and a partition plate, the partition plate is fixedly arranged in the ventilation pipe and divides the ventilation pipe into two ventilation channels, one is a wet air channel, and the other is a dry air channel. The first air inlet fan is fixedly arranged in the wet air duct, the heat exchange device comprises a hydrophobic barrier film and a porous metal layer, a mounting groove is formed in the partition plate, the porous metal layer is fixedly arranged in the mounting groove, and the hydrophobic barrier film is laid on the surface of the side, close to the dry air duct, of the porous metal layer. The hydrophobic barrier film is located in the dry air duct, the porous metal layer is located in the wet air duct, and a water distribution device used