Curtain wall glass cleaning equipment capable of preventing water stain residues

The invention relates to the related technical field of curtain wall cleaning equipment, and discloses curtain wall glass cleaning equipment capable of preventing water stain residue, which comprises a cleaning main machine body, four groups of negative pressure suckers are adjustably arranged on the outer side wall of the cleaning main machine body in a rectangular array, and a water output groove capable of outputting water flow is arranged on the inner side end face of the cleaning main machine body. Two carrying wiping cavities are formed in the end face of the inner side of the cleaning main machine body, and a sewage pumping-back groove for continuously pumping back air flow is formed between the carrying wiping cavities; according to the curtain wall glass cleaning equipment capable of preventing water stain residue, the problems of sewage residue, sewage dripping and permeation into a glass curtain wall structure seam body in the glass curtain wall cleaning process can be greatly reduced through the t