Liquid pumping and drilling method suitable for multi-layer sandstone type uranium mine mining

A liquid extraction drilling method suitable for multi-layer sandstone type uranium mine mining comprises the following steps that 1, a liquid extraction drilling hole is constructed, the liquid extraction drilling hole penetrates through an upper layer ore body and a lower layer ore body, an upper layer ore filter is constructed on the upper layer ore body, and a lower layer ore filter is constructed on the lower layer ore body; 2, the length of an upper-layer ore air pipe and the length of a lower-layer ore liquid pumping pipe are determined according to the positions of an upper-layer ore filter and a lower-layer ore filter, and a packer is installed on the lower-layer ore liquid pumping pipe; 3, a multi-stage submersible pump is installed at the lower end of the lower-layer ore liquid pumping pipe; 4, a lower-layer ore liquid pumping pipe is put down into the liquid pumping drill hole, and a packer is locked to cut off water conservancy connection between the upper-layer ore body and the lower-layer ore b