Filter and filtering system using same

The utility model relates to the field of water treatment, and in particular relates to a filter and a filtering system using the same. The filter comprises a shell and also comprises a pipeline mixer, a flocculoreaction unit, a filtering unit and a water discharging pipe, wherein the pipeline mixer contains a flocculation agent and is connected with a water feeding pipe; the flocculoreaction unit is arranged in the shell and is connected with the pipeline mixer; the filtering unit is used for filtering a liquid discharged from the flocculoreaction unit; and the water discharging pipe is used for discharging a liquid filtered by the filtering unit out of the shell. The filter and the filtering system provided by the utility model have the advantages that the original multiple filtering devices are integrated together and are arranged in sequence according to the order so as to form an integrated working module, so that the occupied working space is reduced, simultaneously the installation program and the debu