Fine filter

The utility model relates to a fine filter which can be used in oil refining and chemical engineering domains. The support saddle of the fine filter is provided in the bottom part of the lower parts of the fine filter; a discharge outlet is provided in the bottom and a liquid inlet is provided in one side of the fine filter; the lumen of the fine filter is provided with a filtering core; the outside of the fine filter wall is covered with a heat preservation layer; the side part of the fine filter is provided with a liquid outlet and an assistance entrance; the upper part of the filtering core is provided with a connection item and the sieve plate of the fine filter is installed on the connection item; the outer side of the sieve plate is covered with an absorbing filtering layer which has absorption function. The utility model has the advantages of a heat preservation and filtering and the filtering core can be used for a long time, and the fine filtering is possible as the inverse washing and the high filte