Hot air knife uniform drying device

The utility model relates to chained cleaning equipment in solar cells, in particular to a hot air knife uniform drying device which comprises an upper air duct and a lower air duct, the upper air duct is connected with an upper air knife, and the lower air duct is connected with a lower air knife. The upper air knife and the lower air knife are correspondingly arranged up and down; the nozzles of the upper air knife and the lower air knife are respectively provided with three rows of staggered holes. The nozzles of the upper air knife and the lower air knife are respectively provided with three rows of staggered holes, so that more and more uniform air is discharged, and the requirement of higher productivity can be met. The upper air knife and the lower air knife are both connected with two air outlet pipes and can be matched with a high-pressure fan with higher power, sufficient hot air supply in the upper air channel and the lower air channel is guaranteed, the sealing performance is guaranteed through fl