Dash panel drainage structure

The present invention relates to a dash panel drainage structure comprising: a lower inner member, a lower outer member, and an upper outer member, the lower outer member being disposed on an outer side of the lower inner member and coupled to the lower inner member to define a closed space between the lower inner member and the lower outer member; and an upper outer member coupled to the lower outer member and the lower inner member, where the upper outer member includes a main bore and a portion of a space defined between the upper outer member and the lower inner member is configured to be in fluid communication with the outside. 本发明涉及一种前围板排水结构，其包括：下部内部构件、下部外部构件以及上部外部构件，所述下部外部构件布置在所述下部内部构件的外侧并联接到下部内部构件，以在下部内部构件和下部外部构件之间限定闭合空间；所述上部外部构件联接到下部外部构件和下部内部构件，其中，所述上部外部构件包括主孔，并且在上部外部构件和下部内部构件之间限定的空间的一部分配置为与外部流体连通。