The invention discloses an air atomization nozzle of a double-oil-path and double-rotational-flow structure, and relates to the field of heat energy and power engineering equipment. An existing nozzleis a single-oil-path nozzle, and under the situation that the fuel flow is low, the fuel pressure difference is low, and the combustion chamber efficiency is low. The air atomization nozzle comprisesa first-level whirlcone, a second-level whirlcone and a nozzle body, wherein the first-level whirlcone is arranged in the nozzle body, the second-level whirlcone sleeves the spraying port end of thenozzle body, air sprayed out of the second-level whirlcone is subjected to flow guiding through a flow guiding sleeve, and the nozzle body is provided with a main oil path oil inlet pipe and an auxiliary oil path oil inlet pipe. A main oil path oil inlet hole, an annular main oil path oil inlet hole, an auxiliary oil path oil inlet hole, an arc auxiliary oil path oil inlet hole, a main oil path oil spraying hole and an auxiliary oil path oil spraying hole are formed in the nozzle body, the main oil path oil inlet pipe, the main oil path oil inlet hole, the annular main oil path oil inlet holeand the main oil path oil spraying hole are connected and are in communication, and the auxiliary oil path oil inlet pipe, the auxiliary oil path oil inlet hole, the arc auxiliary oil path oil inlet hole and the auxiliary oil path oil spraying hole are connected and are in communication. The air atomization nozzle is used for gas turbine liquid fuel atomization.