Abstract: A soda dispensing machine comprising a basic body (10), including a tank (11) containing immersion water (A), in which there are immersed: an evaporator (21) of a refrigerating unit (20); a coil basket (30), disposed inside the evaporator (21) and including at least one gasified water coil (31); a carbonator (40), which is connected with respective sources of carbonic gas and potable water, which are mixed by the carbonator, so as to obtain gasified water, the coil (31) being provided with gasified water and air, which is purged through a drain valve (41) in fluid communication with the carbonator (40), the peripheral surface of the evaporator (21) being adjacently disposed in relation to the peripheral surface of the tank (11), the carbonator (40) being disposed inside the evaporator (21), the drain valve (41) of the carbonator being disposed externally in relation to the basic body (10).