Kawanishi was born in Hiroshima Prefecture on October 9, 1938.
After graduating from Rikkyo University, he joined his local club Toyo Industries in 1961.
In December 1959, when he was a Rikkyo University student, he was selected Japan national team for 1960 Summer Olympics qualification.
At this qualification, on December 20, he debuted against South Korea.
This biographical article related to a Japanese association football midfielder born in the 1930s is a stub.