Portable modular beverage dispenser

A portable modular insulated container comprising:

• a base module including refrigeration unit;
• a central sleeve module concentrically engageable with the base including a central bore configured to encircle a beverage container;
• a cover module concentrically engageable with the sleeve to enclose the container including a container of pressurized gas, a pressure regulator, a shut-off valve interposed the regulator and gas container, a tapping head including a gas inlet for applying regulated gas to the beverage container and a beverage outlet for dispensing beverage, a dispensing tower with a hand operated dispensing valve, a gas conduit extending between the regulator and the gas inlet, and a beverage conduit extending between the beverage outlet and the dispensing tower;
• a support plate abutting a supporting surface;
• an evaporator plate at an upper end of the base;
• a plurality of support rods extending between the support plate and evaporator plate;
• a container centering recess formed in the upper end to engage a flange of the beverage container;
• and
• a plurality of diametrical recesses formed in the upper end, said diametrical recesses extending below and ending radially outward of the container centering recess to provide air circulation around the evaporator plate.