Side wall type vacuum filtering machine

The utility model provides a side wall type vacuum filtering machine. A negative pressure machine for sucking out a raw material inside a filtering tank from the filtering tank is arranged on the outer side wall of the filtering tank; a negative pressure filtering net is arranged between the negative pressure machine and the filtering tank body; a rough raw material filtering net and a fine raw material filtering net are arranged inside the filtering tank body; the rough raw material filtering net is arranged at the center of the filtering tank body; the fine raw material filtering net is arranged between the rough raw material filtering net and the negative pressure filtering net; two sides in the vertical direction of the rough raw material filtering net are bent to form a column in a surrounding manner, so that a rotation accommodation cavity can be formed, and can be in transmission connection with the filtering tank body. The utility model provides the side wall type vacuum filtering machine for multi-separation of filtrate and filter residues through cooperation of the negative pressure machine, multiple filtering nets and a rotation mechanism.