A combined cooling heating and power micro gas turbine device includes a micro gas turbine (2). The micro gas turbine (2) includes a gas compressor (20), a turbine (21) and a combustion chamber assembly. The combustion chamber assembly includes a combustion chamber (231), an air inlet cavity (232), an air inlet channel (234) and an exhaust channel (235). The air inlet cavity (232) includes an interior air inlet cavity (2321) and an exterior air inlet cavity (2322) that are integrated, an air outlet end of the exterior air inlet cavity (2322) is communicated with an air inlet end of the interior air inlet cavity (2321), an air inlet end of the exterior air inlet cavity (2322) is communicated with the air inlet channel (234), the air inlet channel (234) is communicated with the gas compressor (20), the combustion chamber (231) is arranged between the interior air inlet cavity (2321) and the exterior air inlet cavity (2322) , and an air outlet (2311) of the combustion chamber is communicated with the exhaust channel (235); and an impeller (201) of the gas compressor (20) is coaxially connected with the turbine (21) through a rotating shaft (24), and a rim of the turbine (21) stretches into the exhaust channel (235).