Condenser assembly and washing and drying all-in-one machine

The utility model relates to the technical field of clothes processing, and provides a condenser assembly and a washing and drying all-in-one machine, the condenser assembly comprises a condenser and an anti-overflow device, a condensation air channel and a fresh air channel are formed in the condenser, the fresh air channel communicates with the condensation air channel, and the anti-overflow device is provided with an air inlet and an elastic opening; the surrounding portion of the air inlet is in sealed connection with the fresh air duct, the air inlet is communicated with the outside, and the elastic opening is located in the fresh air duct, so that foam from the condensation air duct can drive the elastic opening to be closed, and external airflow from the air inlet can drive the elastic opening to expand. The fresh air duct is arranged on the condenser, external airflow can also be fed into the clothes processing cavity through the condensation air duct, flow channels can be saved, the elastic opening i