Chen was always too good and after taking an early lead in the first game Hu simply was not in the contest losing 21-11, 21-8.
In the women's singles India's Saina Nehwal had a hard-fought three-game win over China's Sun Yu winning 21-19, 19-21, 21-14 to be the only Indian player left in the event.
China's unseeded Tian Houwei beat world No. 4 Kidambi Srikanth of India to reach quarter-finals, winning 18-21, 21-17, 21-13.
After beating China's Lin Dan on Wednesday Denmark's world No. 9 Viktor Axelson continued with his hot form beating China's Xue Song 21-19, 18-21, 21-14.
In the women's draw, China's No. 1 seed Li Xuerui beat Mitani Minatsu 21-16, 21-14.
In the mixed doubles South Korea's Choi Solgyu/Eom Hye beat China's Lu Kai/Huang Yaqiong 21-17, 21-23, 21-19.
Chinese duo and top seeds Xu Chen/Ma Jin reached the quarter-finals after defeating Shin Bae Choel/Chae Yoo Jung 21-17, 19-21, 21-19.
Mixed doubles top seeds Xu Chen/Ma Jin of China moved to the quarter-finals after beating South Korea's Shin Bae Choel/Chae Yoo Jung 21-11, 19-21, 21-19.
In the men's doubles China's Fu Haifeng/Zhang Nan beat Markis Kido/Agripinna Prima Rahmanto Putra of Indonesia 21-13, 21-13.