Comprehensive purification filter for kitchen

The invention relates to the field of air purification equipment of closed kitchen cabins of ships, in particular to a comprehensive purification filter for a kitchen. The filter comprises a main machine and a controller, the main machine comprises a shell assembly, the shell assembly comprises a shell with an air inlet and an air outlet, and a filtering assembly, an adsorption assembly and a fan assembly are sequentially arranged in the shell from the air inlet to the air outlet. Air flow entering through the air inlet of the shell passes through a filtering unit of the filtering assembly, enters an air inlet gap of the adsorption assembly, passes through the adsorption unit, leaves an air outlet gap, enters the fan through a fan diffuser of a fan assembly, and is exhausted from a silencer and the air outlet of the shell. Through the combined effect of the silencer, the silencing cotton and the microporous silencing plate, the noise of the air outlet of the fan is reduced, and the problem that the operation