A histocyte sorting filter for flow cytometer

The utility model discloses a histiocyte sorting filter for a flow cytometer. The sample adding device comprises a sample adding tank and a centrifugal tube detachably connected to the lower part of the sample adding tank, a gas inlet is formed in the upper part of the sample adding groove; the centrifugal tube is detachably connected with the sample adding tank through a connecting tube; the upper end of the connecting pipe is inserted into the bottom end of the sample adding groove; the upper end of the connecting pipe is communicated with the accommodating space in the sample adding groove;the top end of the connecting pipe is detachably connected with a filter screen; an air outlet hole is formed in one side of the connecting pipe; according to the cell suspension filtering device, the sample adding tank of a sealing structure is arranged, the gas inlet is connected to the sample adding tank, and the gas outlet is formed in the connecting pipe, so that positive-pressure gas can pass into the sample adding