Disposable tumor cell filter

The utility model discloses a disposable tumor cell filter which comprises a supporting plate, a support is fixedly installed on the top of the supporting plate, a transverse rod is fixedly installed on the right side of the support, a funnel is fixedly installed at the right end of the transverse rod, the bottom of the funnel is communicated with a pipe body, and a through pipe is arranged at the bottom of the pipe body. The bottom of the pipe body penetrates through the top of the through pipe and extends into the through pipe, the bottom of the through pipe communicates with a filter pipe, and a filter membrane is arranged in the filter pipe. According to the disposable tumor cell filter, by arranging the pull rod, the blocking block and the reset spring, when the pull rod is pulled, the pull rod drives the blocking block to move leftwards, so that the top of the blocking block is separated from the bottom end of the tube body, the blocking block is separated from the liquid outlet hole, and blood flows in