Ink-jet printer and ink filter thereof

The invention relates to an ink-jet printer and an ink filter thereof, the ink-jet printer comprises a shell, a filter element, a filter inlet pipe and a filter outlet pipe, the filter inlet pipe and the filter outlet pipe are respectively arranged on the periphery of two ends of the shell and are communicated with the internal space of the shell, and the filter element is arranged in the shell and isolates the filter inlet pipe and the filter outlet pipe. The opening directions of the filter outlet pipe and the filter inlet pipe are the same, and the axes of the filter outlet pipe and the filter inlet pipe are parallel to each other and are perpendicular to the longitudinal axis of the shell; a first sealing ring and a second sealing ring are respectively arranged on the filter outlet pipe and the filter inlet pipe; the shell is provided with the mounting fixing hole, when the filter is connected with an ink supply system of the ink-jet printer, the filter inlet pipe and the filter outlet pipe can be directl