Filtering device capable of improving recovery rate

The utility model relates to the technical field of filter elements, in particular to a filter device capable of improving recovery rate, which comprises a first container for receiving filtrate and a funnel connected with an inlet of the first container, a filter component is arranged at a liquid inlet end of the funnel and consists of a plurality of second containers, and the second containers are connected with the funnel. And each second container is provided with an inlet and an outlet, and two adjacent second containers are connected. According to the filtering device capable of improving the recovery rate, the filtering assembly capable of achieving multi-stage filtering is arranged on the funnel, so that when filtrate containing calcium carbonate particle precipitates to be filtered flows through the filtering assembly, particles with different particle sizes can be filtered out by different filtering nets with different corresponding filtering coefficients; the large-aperture filter screen is used fo