Closed pollution discharge and collection device for natural gas station

The utility model discloses a natural gas station closed pollution discharge collecting device which comprises the ground and further comprises a collecting tank, a vertical pit is formed in the ground, the collecting tank can be placed in the vertical pit, a support for supporting the collecting tank is placed in the vertical pit, and the collecting tank is placed on the support. Vertical holes allowing the anchor rods to be inserted are formed in the outer ring of the top of the collecting tank in an annular array mode, the anchor rods penetrate through the vertical holes to be buried in the ground below the vertical holes, the tops of the anchor rods are in threaded connection with bolts for reinforcing and connecting the collecting tank and the anchor rods, and a liquid discharging pipe for discharging waste liquid into the collecting tank is installed on a cover body of the collecting tank in a penetrating mode. The pollution discharge tank solves the problems that the pollution discharge tank which is b