The invention discloses a high-efficiency condenser and a washing 
machine with the same. The condenser is of a cavity structure with a wider upper part and a narrower lower part, and the lower part isbent to one side. The condenser comprises a shell, heat exchange tubes, a spray box, and a 
condensed water outlet. An air inlet is formed in the lower part of the shell and is connected to an outer cylinder of the washing 
machine, an air outlet is formed in the top of the shell and is connected with a 
fan in a 
drying air duct, the side with a smaller curvature 
radius of the lower bending part isthe inner side, and the side with a larger curvature 
radius is the outer side; the heat exchange tubes are disposed in the shell for heat exchange with hot humid air, hollowed and wound into multiplerows of cylindrical spring-shaped heat exchange tubes arranged above and below; the spray box is disposed above the heat exchange tubes for flushing wire scraps on the heat exchange tubes; the 
condensed water outlet is located at the bottom of the condenser for discharging 
condensed water in the condenser and is connected to a drain 
pipe of the washing 
machine. The condenser and the washing machine realize gas-liquid separation of a condensing process; besides, through the setting of the change of the density, outer 
diameter and inner 
diameter of the heat exchange tubes, the heat exchange is more fully achieved and the condensing efficiency is improved, thus the 
drying efficiency of a washing and 
drying machine is improved.