Refrigerator

A refrigerator comprising:

• a main body cabinet comprising a freezing compartment and a refrigerating compartment which are divided from each other, and a freezing convertible compartment and a refrigerating convertible compartment which are divided from the freezing compartment and the refrigerating compartment to function as either refrigerating or freezing;
• and
• a cool air providing part comprising a freezing compartment evaporator and a refrigerating compartment evaporator to cool the freezing compartment and the refrigerating compartment, a freezing convertible compartment evaporator and a refrigerating convertible compartment evaporator respectively connected to the freezing compartment evaporator and the refrigerating compartment evaporator in series to cool the freezing convertible compartment and the refrigerating convertible compartment, and a plurality of cooing fans respectively providing cool air generated in the freezing convertible compartment evaporator and the refrigerating convertible compartment evaporator to the freezing convertible compartment and the refrigerating convertible compartment.