Kitchen smoke exhaust device easy to disassemble

The utility model belongs to the technical field of kitchen utensils, and particularly relates to a kitchen smoke exhaust device easy to disassemble, which comprises a smoke exhaust ventilator and a smoke exhaust pipeline, a fixing mechanism is arranged at a smoke exhaust port of the smoke exhaust ventilator, and the smoke exhaust pipeline is provided with a connecting mechanism. The fixing mechanism comprises a fixing ring and four connecting assemblies, and the fixing ring is fixedly arranged at a smoke outlet of the smoke exhaust ventilator; the connecting assembly comprises a cylinder, an elastic piece and two telescopic pieces, a mounting cavity is formed in the upper side of the cylinder, through grooves are formed in the two opposite inner walls of the mounting cavity, the two telescopic pieces are symmetrically arranged in the mounting cavity, each telescopic piece comprises a limiting piece and a spring bolt, the limiting pieces are arranged in the mounting cavity in a sliding mode, and the spring bo