Liftable tunnel drainage blind tube trash holding box

The invention relates to a liftable tunnel drainage blind tube trash holding box which comprises a sand storage box, a dismountable trash holding cover, a dismountable water baffle cover, a lifting handle, clamping grooves, a water baffle, a blind tube casing, reinforcing corners and a drainage blind tube, wherein the clamping grooves, the water baffle, the blind tube casing, the reinforcing corners and the drainage blind tube are mounted inside the sand storage box; a dismountable trash holding cover is moveably mounted at the top of the sand storage box; the circular dismountable water blocking cover is moveably mounted on the dismountable trash holding cover; the blind tube casing is vertically arranged on the right side of the water baffle inside the sand storage box; the blind tube casing, the bottom of the blind tube casing, the reinforcing corners and the sand storage box are integrated; the drainage blind tube is moveably connected into the blind tube casing in a sleeved manner. By adopting the liftable tunnel drainage blind tube trash holding box, sewage is fed into the drainage blind tube after sand is deposited, secondary deposition can be formed, and the drainage blind tube can be effectively prevented from being blocked by impurities such as trash and sand carried by water.