The utility model relates to a fine filter and an air filter using the same. The fine filter comprises a swirl pipe, a fine filter housing and a filter core coaxially assembled in the finer filter housing, wherein the swirl pipe has a swirl air inlet, a swirl air outlet and a swirl dust exhaust port, and the swirl air outlet is communicated with the filter core; a finer filter air inlet is arranged on the fine filter housing, and an air inlet chamber communicated with the fine filter air inlet is arranged between the fine filter housing and the filter core, and comprises a cylindrical bottom plate sleeved on the filter core, and two vertical walls which are vertically arranged on the cylindrical bottom plate at an interval; the two vertical walls are arranged at the two sides of the fine filter air inlet along the axial direction of the fine filter housing, and the top ends of the two vertical walls are in sealing fit with the inner wall surface of the fine filter housing; and the two ends of the swirl pipe are respectively erected on the two vertical walls and are in sealing fit with the corresponding vertical walls. The finer filter solves the problems that the load of the filter core of the traditional fine filter with a swirl pipe is uneven. The utility model also discloses an air filter using the fine filter.