Curtain wall cleaning device and cleaning method

The invention discloses a curtain wall cleaning device and method, and relates to the field of cleaning devices.The curtain wall cleaning device comprises a hanging basket, a controller is fixedly arranged on one side of the hanging basket, an adsorption assembly is arranged at the bottom of the hanging basket, a blocking assembly is arranged on the front side of the hanging basket and comprises a fixing shaft, and extension plates are arranged at the two ends of the fixing shaft through bearings; a baffle is fixedly arranged at the outer end of the fixing shaft, a sealing strip is fixedly arranged at the top end of the baffle, and two fixing rings are fixedly arranged at the outer end of the fixing shaft. The fixed baffle is loosened, the baffle is driven to rotate through the elastic force of the torsional spring, the sealing strip at the top end of the baffle makes contact with the curtain wall, and in this way, in the cleaning process, water stains flowing downwards on the curtain wall can be blocked by t