The utility model provides a separate liquid delivery type airtight zonal-production pump for multi-zone production, which is applicable in the zonal production of oilfields. A lower pump bushing is connected to the upper part of a lower connector; the upper end of the lower pump bushing is fixed on a connecting body; the lower end of the connecting body is connected with the upper end of a lower pump cylinder; a lower-layer fixed valve is fixed at the lower end of the lower pump cylinder; a lower plunger is arranged in the lower pump cylinder; a lower-layer traveling valve is arranged at the lower end of the lower plunger; the upper end of the lower plunger is fixed at the lower end of a plunger connecting pipe; an upper plunger is connected to the upper end of the plunger connecting pipe; lateral holes are formed on the wall of a plunger connector; an upper-layer fixed valve is fixed on the lateral wall of the connecting body; the upper plunger is arranged in an upper pump cylinder; an upper connector is connected to the upper end of a connecting cylinder; and an upper-layer traveling valve is communicated with the inner axial channel of the upper connector and further communicated with the lateral holes on the wall of the plunger connector. Accordingly, the utility model has the beneficial effects that the inlet liquid from the upper layer cannot be mixed with the inlet liquid from the lower layer in the pump which is provided with no extra space, thus effectively preventing the gas lock from being generated from the gas in the pump cylinder and guaranteeing the normal operation of the pump.