Tā qǐngkè zhuāngménmiàn, qián dōu huā zài bù zhídé de dìfang.
He throws dinners to keep up appearances — all the money ends up somewhere pointless.
Tips
usage
门面 is the shopfront — the part customers see. 装门面 is about dressing up that visible layer without substance behind it. Slightly stronger and more dismissive than 讲面子.
